gocv

package module

v0.32.11 Latest Latest Go to latest Published: Nov 7, 2023 License: Apache-2.0 Imports: 9 Imported by: 0

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Repository

README ¶

Autodarts GoCV

This is a reduced fork of the official hybridgroup/gocv project that only includes the bindings that are actually used in the autodarts projects. We have only removed files that referred to libraries we do not use. We have not removed individual functions from files that we do not use. All files are directly copied from the GoCV code.

There are two exceptions where we have made some changes and additions:

We have updated cgo.go and cgo_static.go to reflect the reduction in dependent libraries.
We have added a the OpenCVBuildInformation function in version.go to output the OpenCV build information.

Documentation ¶

Index ¶

Constants
Variables
func AbsDiff(src1, src2 Mat, dst *Mat)
func Accumulate(src Mat, dst *Mat)
func AccumulateProduct(src1 Mat, src2 Mat, dst *Mat)
func AccumulateProductWithMask(src1 Mat, src2 Mat, dst *Mat, mask Mat)
func AccumulateSquare(src Mat, dst *Mat)
func AccumulateSquareWithMask(src Mat, dst *Mat, mask Mat)
func AccumulateWithMask(src Mat, dst *Mat, mask Mat)
func AccumulatedWeighted(src Mat, dst *Mat, alpha float64)
func AccumulatedWeightedWithMask(src Mat, dst *Mat, alpha float64, mask Mat)
func AdaptiveThreshold(src Mat, dst *Mat, maxValue float32, adaptiveTyp AdaptiveThresholdType, ...)
func Add(src1, src2 Mat, dst *Mat)
func AddWeighted(src1 Mat, alpha float64, src2 Mat, beta float64, gamma float64, dst *Mat)
func ApplyColorMap(src Mat, dst *Mat, colormapType ColormapTypes)
func ApplyCustomColorMap(src Mat, dst *Mat, customColormap Mat)
func ArcLength(curve PointVector, isClosed bool) float64
func ArrowedLine(img *Mat, pt1 image.Point, pt2 image.Point, c color.RGBA, thickness int)
func BatchDistance(src1 Mat, src2 Mat, dist Mat, dtype MatType, nidx Mat, normType NormType, ...)
func BilateralFilter(src Mat, dst *Mat, diameter int, sigmaColor float64, sigmaSpace float64)
func BitwiseAnd(src1 Mat, src2 Mat, dst *Mat)
func BitwiseAndWithMask(src1 Mat, src2 Mat, dst *Mat, mask Mat)
func BitwiseNot(src1 Mat, dst *Mat)
func BitwiseNotWithMask(src1 Mat, dst *Mat, mask Mat)
func BitwiseOr(src1 Mat, src2 Mat, dst *Mat)
func BitwiseOrWithMask(src1 Mat, src2 Mat, dst *Mat, mask Mat)
func BitwiseXor(src1 Mat, src2 Mat, dst *Mat)
func BitwiseXorWithMask(src1 Mat, src2 Mat, dst *Mat, mask Mat)
func Blur(src Mat, dst *Mat, ksize image.Point)
func BorderInterpolate(p int, len int, borderType CovarFlags) int
func BoundingRect(contour PointVector) image.Rectangle
func BoxFilter(src Mat, dst *Mat, depth int, ksize image.Point)
func BoxPoints(rect RotatedRect, pts *Mat)
func CalcBackProject(src []Mat, channels []int, hist Mat, backProject *Mat, ranges []float64, ...)
func CalcCovarMatrix(samples Mat, covar *Mat, mean *Mat, flags CovarFlags, ctype MatType)
func CalcHist(src []Mat, channels []int, mask Mat, hist *Mat, size []int, ranges []float64, ...)
func CalibrateCamera(objectPoints Points3fVector, imagePoints Points2fVector, imageSize image.Point, ...) float64
func Canny(src Mat, edges *Mat, t1 float32, t2 float32)
func CartToPolar(x Mat, y Mat, magnitude *Mat, angle *Mat, angleInDegrees bool)
func CheckRange(src Mat) bool
func Circle(img *Mat, center image.Point, radius int, c color.RGBA, thickness int)
func CircleWithParams(img *Mat, center image.Point, radius int, c color.RGBA, thickness int, ...)
func ClipLine(imgSize image.Point, pt1 image.Point, pt2 image.Point) bool
func Compare(src1 Mat, src2 Mat, dst *Mat, ct CompareType)
func CompareHist(hist1 Mat, hist2 Mat, method HistCompMethod) float32
func CompleteSymm(m Mat, lowerToUpper bool)
func ConnectedComponents(src Mat, labels *Mat) int
func ConnectedComponentsWithParams(src Mat, labels *Mat, conn int, ltype MatType, ...) int
func ConnectedComponentsWithStats(src Mat, labels *Mat, stats *Mat, centroids *Mat) int
func ConnectedComponentsWithStatsWithParams(src Mat, labels *Mat, stats *Mat, centroids *Mat, conn int, ltype MatType, ...) int
func ContourArea(contour PointVector) float64
func ConvertScaleAbs(src Mat, dst *Mat, alpha float64, beta float64)
func ConvexHull(points PointVector, hull *Mat, clockwise bool, returnPoints bool)
func ConvexityDefects(contour PointVector, hull Mat, result *Mat)
func CopyMakeBorder(src Mat, dst *Mat, top int, bottom int, left int, right int, bt BorderType, ...)
func CornerSubPix(img Mat, corners *Mat, winSize image.Point, zeroZone image.Point, ...)
func CountNonZero(src Mat) int
func CvtColor(src Mat, dst *Mat, code ColorConversionCode)
func DCT(src Mat, dst *Mat, flags DftFlags)
func DFT(src Mat, dst *Mat, flags DftFlags)
func Determinant(src Mat) float64
func Dilate(src Mat, dst *Mat, kernel Mat)
func DilateWithParams(src Mat, dst *Mat, kernel Mat, anchor image.Point, ...)
func DistanceTransform(src Mat, dst *Mat, labels *Mat, distType DistanceTypes, ...)
func Divide(src1 Mat, src2 Mat, dst *Mat)
func DrawChessboardCorners(image *Mat, patternSize image.Point, corners Mat, patternWasFound bool)
func DrawContours(img *Mat, contours PointsVector, contourIdx int, c color.RGBA, thickness int)
func DrawContoursWithParams(img *Mat, contours PointsVector, contourIdx int, c color.RGBA, thickness int, ...)
func Eigen(src Mat, eigenvalues *Mat, eigenvectors *Mat) bool
func EigenNonSymmetric(src Mat, eigenvalues *Mat, eigenvectors *Mat)
func Ellipse(img *Mat, center, axes image.Point, angle, startAngle, endAngle float64, ...)
func EllipseWithParams(img *Mat, center, axes image.Point, angle, startAngle, endAngle float64, ...)
func EqualizeHist(src Mat, dst *Mat)
func Erode(src Mat, dst *Mat, kernel Mat)
func ErodeWithParams(src Mat, dst *Mat, kernel Mat, anchor image.Point, iterations, borderType int)
func EstimateNewCameraMatrixForUndistortRectify(k, d Mat, imgSize image.Point, r Mat, p *Mat, balance float64, ...)
func Exp(src Mat, dst *Mat)
func ExtractChannel(src Mat, dst *Mat, coi int)
func FillPoly(img *Mat, pts PointsVector, c color.RGBA)
func FillPolyWithParams(img *Mat, pts PointsVector, c color.RGBA, lineType LineType, shift int, ...)
func Filter2D(src Mat, dst *Mat, ddepth MatType, kernel Mat, anchor image.Point, ...)
func FindChessboardCorners(image Mat, patternSize image.Point, corners *Mat, flags CalibCBFlag) bool
func FindChessboardCornersSB(image Mat, patternSize image.Point, corners *Mat, flags CalibCBFlag) bool
func FindChessboardCornersSBWithMeta(image Mat, patternSize image.Point, corners *Mat, flags CalibCBFlag, meta *Mat) bool
func FindNonZero(src Mat, idx *Mat)
func FisheyeUndistortImage(distorted Mat, undistorted *Mat, k, d Mat)
func FisheyeUndistortImageWithParams(distorted Mat, undistorted *Mat, k, d, knew Mat, size image.Point)
func FisheyeUndistortPoints(distorted Mat, undistorted *Mat, k, d, r, p Mat)
func FitLine(pts PointVector, line *Mat, distType DistanceTypes, param, reps, aeps float64)
func Flip(src Mat, dst *Mat, flipCode int)
func GaussianBlur(src Mat, dst *Mat, ksize image.Point, sigmaX float64, sigmaY float64, ...)
func Gemm(src1, src2 Mat, alpha float64, src3 Mat, beta float64, dst *Mat, flags int)
func GetOptimalDFTSize(vecsize int) int
func GetRectSubPix(src Mat, patchSize image.Point, center image.Point, dst *Mat)
func GetTextSize(text string, fontFace HersheyFont, fontScale float64, thickness int) image.Point
func GetTextSizeWithBaseline(text string, fontFace HersheyFont, fontScale float64, thickness int) (image.Point, int)
func GetTickCount() float64
func GetTickFrequency() float64
func GoodFeaturesToTrack(img Mat, corners *Mat, maxCorners int, quality float64, minDist float64)
func GrabCut(img Mat, mask *Mat, r image.Rectangle, bgdModel *Mat, fgdModel *Mat, ...)
func Hconcat(src1, src2 Mat, dst *Mat)
func HoughCircles(src Mat, circles *Mat, method HoughMode, dp, minDist float64)
func HoughCirclesWithParams(src Mat, circles *Mat, method HoughMode, dp, minDist, param1, param2 float64, ...)
func HoughLines(src Mat, lines *Mat, rho float32, theta float32, threshold int)
func HoughLinesP(src Mat, lines *Mat, rho float32, theta float32, threshold int)
func HoughLinesPWithParams(src Mat, lines *Mat, rho float32, theta float32, threshold int, ...)
func HoughLinesPointSet(points Mat, lines *Mat, linesMax int, threshold int, minRho float32, ...)
func IDCT(src Mat, dst *Mat, flags int)
func IDFT(src Mat, dst *Mat, flags, nonzeroRows int)
func IMWrite(name string, img Mat) bool
func IMWriteWithParams(name string, img Mat, params []int) bool
func InRange(src, lb, ub Mat, dst *Mat)
func InRangeWithScalar(src Mat, lb, ub Scalar, dst *Mat)
func InitUndistortRectifyMap(cameraMatrix Mat, distCoeffs Mat, r Mat, newCameraMatrix Mat, size image.Point, ...)
func InsertChannel(src Mat, dst *Mat, coi int)
func Integral(src Mat, sum *Mat, sqsum *Mat, tilted *Mat)
func Invert(src Mat, dst *Mat, flags SolveDecompositionFlags) float64
func InvertAffineTransform(src Mat, dst *Mat)
func KMeans(data Mat, k int, bestLabels *Mat, criteria TermCriteria, attempts int, ...) float64
func KMeansPoints(points PointVector, k int, bestLabels *Mat, criteria TermCriteria, ...) float64
func LUT(src, wbLUT Mat, dst *Mat)
func Laplacian(src Mat, dst *Mat, dDepth MatType, size int, scale float64, delta float64, ...)
func Line(img *Mat, pt1 image.Point, pt2 image.Point, c color.RGBA, thickness int)
func LinearPolar(src Mat, dst *Mat, center image.Point, maxRadius float64, ...)
func Log(src Mat, dst *Mat)
func LogPolar(src Mat, dst *Mat, center image.Point, m float64, flags InterpolationFlags)
func Magnitude(x, y Mat, magnitude *Mat)
func MatchTemplate(image Mat, templ Mat, result *Mat, method TemplateMatchMode, mask Mat)
func Max(src1, src2 Mat, dst *Mat)
func MeanStdDev(src Mat, dst *Mat, dstStdDev *Mat)
func MedianBlur(src Mat, dst *Mat, ksize int)
func Merge(mv []Mat, dst *Mat)
func Min(src1, src2 Mat, dst *Mat)
func MinEnclosingCircle(pts PointVector) (x, y, radius float32)
func MinMaxIdx(input Mat) (minVal, maxVal float32, minIdx, maxIdx int)
func MinMaxLoc(input Mat) (minVal, maxVal float32, minLoc, maxLoc image.Point)
func MixChannels(src []Mat, dst []Mat, fromTo []int)
func Moments(src Mat, binaryImage bool) map[string]float64
func MorphologyEx(src Mat, dst *Mat, op MorphType, kernel Mat)
func MorphologyExWithParams(src Mat, dst *Mat, op MorphType, kernel Mat, iterations int, ...)
func MulSpectrums(a Mat, b Mat, dst *Mat, flags DftFlags)
func Multiply(src1 Mat, src2 Mat, dst *Mat)
func MultiplyWithParams(src1 Mat, src2 Mat, dst *Mat, scale float64, dtype MatType)
func Norm(src1 Mat, normType NormType) float64
func NormWithMats(src1 Mat, src2 Mat, normType NormType) float64
func Normalize(src Mat, dst *Mat, alpha float64, beta float64, typ NormType)
func OpenCVBuildInformation() string
func OpenCVVersion() string
func PerspectiveTransform(src Mat, dst *Mat, tm Mat)
func Phase(x, y Mat, angle *Mat, angleInDegrees bool)
func PointPolygonTest(pts PointVector, pt image.Point, measureDist bool) float64
func PolarToCart(magnitude Mat, degree Mat, x *Mat, y *Mat, angleInDegrees bool)
func Polylines(img *Mat, pts PointsVector, isClosed bool, c color.RGBA, thickness int)
func Pow(src Mat, power float64, dst *Mat)
func PutText(img *Mat, text string, org image.Point, fontFace HersheyFont, ...)
func PutTextWithParams(img *Mat, text string, org image.Point, fontFace HersheyFont, ...)
func PyrDown(src Mat, dst *Mat, ksize image.Point, borderType BorderType)
func PyrUp(src Mat, dst *Mat, ksize image.Point, borderType BorderType)
func RandN(mat *Mat, mean, stddev Scalar)
func RandShuffle(mat *Mat)
func RandShuffleWithParams(mat *Mat, iterFactor float64, rng RNG)
func RandU(mat *Mat, low, high Scalar)
func Rectangle(img *Mat, r image.Rectangle, c color.RGBA, thickness int)
func RectangleWithParams(img *Mat, r image.Rectangle, c color.RGBA, thickness int, lineType LineType, ...)
func Reduce(src Mat, dst *Mat, dim int, rType ReduceTypes, dType MatType)
func Remap(src Mat, dst, map1, map2 *Mat, interpolation InterpolationFlags, ...)
func Repeat(src Mat, nY int, nX int, dst *Mat)
func Resize(src Mat, dst *Mat, sz image.Point, fx, fy float64, interp InterpolationFlags)
func Rotate(src Mat, dst *Mat, code RotateFlag)
func ScaleAdd(src1 Mat, alpha float64, src2 Mat, dst *Mat)
func Scharr(src Mat, dst *Mat, dDepth MatType, dx int, dy int, scale float64, ...)
func SepFilter2D(src Mat, dst *Mat, ddepth MatType, kernelX, kernelY Mat, anchor image.Point, ...)
func SetIdentity(src Mat, scalar float64)
func SetRNGSeed(seed int)
func Sobel(src Mat, dst *Mat, ddepth MatType, dx, dy, ksize int, scale, delta float64, ...)
func Solve(src1 Mat, src2 Mat, dst *Mat, flags SolveDecompositionFlags) bool
func SolveCubic(coeffs Mat, roots *Mat) int
func SolvePoly(coeffs Mat, roots *Mat, maxIters int) float64
func Sort(src Mat, dst *Mat, flags SortFlags)
func SortIdx(src Mat, dst *Mat, flags SortFlags)
func SpatialGradient(src Mat, dx, dy *Mat, ksize MatType, borderType BorderType)
func SqBoxFilter(src Mat, dst *Mat, depth int, ksize image.Point)
func Subtract(src1 Mat, src2 Mat, dst *Mat)
func Thinning(src Mat, dst *Mat, typ ThinningType)
func Threshold(src Mat, dst *Mat, thresh float32, maxvalue float32, typ ThresholdType) (threshold float32)
func Transform(src Mat, dst *Mat, tm Mat)
func Transpose(src Mat, dst *Mat)
func Undistort(src Mat, dst *Mat, cameraMatrix Mat, distCoeffs Mat, newCameraMatrix Mat)
func UndistortPoints(src Mat, dst *Mat, ...)
func Vconcat(src1, src2 Mat, dst *Mat)
func Version() string
func WarpAffine(src Mat, dst *Mat, m Mat, sz image.Point)
func WarpAffineWithParams(src Mat, dst *Mat, m Mat, sz image.Point, flags InterpolationFlags, ...)
func WarpPerspective(src Mat, dst *Mat, m Mat, sz image.Point)
func WarpPerspectiveWithParams(src Mat, dst *Mat, m Mat, sz image.Point, flags InterpolationFlags, ...)
func Watershed(image Mat, markers *Mat)
type AdaptiveThresholdType
type BorderType
type CLAHE
- func NewCLAHE() CLAHE
- func NewCLAHEWithParams(clipLimit float64, tileGridSize image.Point) CLAHE
- func (c *CLAHE) Apply(src Mat, dst *Mat)
- func (c *CLAHE) Close() error
type CalibCBFlag
type CalibFlag
type ColorConversionCode
- func (c ColorConversionCode) String() string
type ColormapTypes
type CompareType
type ConnectedComponentsAlgorithmType
type ConnectedComponentsTypes
type ContourApproximationMode
type CovarFlags
type DMatch
type DftFlags
type DistanceTransformLabelTypes
type DistanceTransformMasks
type DistanceTypes
type FileExt
type GrabCutMode
type HersheyFont
type HistCompMethod
type HomographyMethod
type HoughMode
type IMReadFlag
type InterpolationFlags
type KMeansFlags
type KeyPoint
type LineType
type Mat
- func EstimateAffine2D(from, to Point2fVector) Mat
- func EstimateAffine2DWithParams(from Point2fVector, to Point2fVector, inliers Mat, method int, ...) Mat
- func EstimateAffinePartial2D(from, to Point2fVector) Mat
- func Eye(rows int, cols int, mt MatType) Mat
- func FindHomography(srcPoints Mat, dstPoints *Mat, method HomographyMethod, ...) Mat
- func GetAffineTransform(src, dst PointVector) Mat
- func GetAffineTransform2f(src, dst Point2fVector) Mat
- func GetGaussianKernel(ksize int, sigma float64) Mat
- func GetGaussianKernelWithParams(ksize int, sigma float64, ktype MatType) Mat
- func GetOptimalNewCameraMatrixWithParams(cameraMatrix Mat, distCoeffs Mat, imageSize image.Point, alpha float64, ...) (Mat, image.Rectangle)
- func GetPerspectiveTransform(src, dst PointVector) Mat
- func GetPerspectiveTransform2f(src, dst Point2fVector) Mat
- func GetRotationMatrix2D(center image.Point, angle, scale float64) Mat
- func GetStructuringElement(shape MorphShape, ksize image.Point) Mat
- func IMDecode(buf []byte, flags IMReadFlag) (Mat, error)
- func IMRead(name string, flags IMReadFlag) Mat
- func ImageGrayToMatGray(img *image.Gray) (Mat, error)
- func ImageToMatRGB(img image.Image) (Mat, error)
- func ImageToMatRGBA(img image.Image) (Mat, error)
- func NewMat() Mat
- func NewMatFromBytes(rows int, cols int, mt MatType, data []byte) (Mat, error)
- func NewMatFromScalar(s Scalar, mt MatType) Mat
- func NewMatWithSize(rows int, cols int, mt MatType) Mat
- func NewMatWithSizeFromScalar(s Scalar, rows int, cols int, mt MatType) Mat
- func NewMatWithSizes(sizes []int, mt MatType) Mat
- func NewMatWithSizesFromBytes(sizes []int, mt MatType, data []byte) (Mat, error)
- func NewMatWithSizesWithScalar(sizes []int, mt MatType, s Scalar) Mat
- func Ones(rows int, cols int, mt MatType) Mat
- func Split(src Mat) (mv []Mat)
- func Zeros(rows int, cols int, mt MatType) Mat
- func (m *Mat) AddFloat(val float32)
- func (m *Mat) AddUChar(val uint8)
- func (m *Mat) Channels() int
- func (m *Mat) Clone() Mat
- func (m *Mat) Close() error
- func (m *Mat) ColRange(start, end int) Mat
- func (m *Mat) Cols() int
- func (m *Mat) ConvertFp16() Mat
- func (m *Mat) ConvertTo(dst *Mat, mt MatType)
- func (m *Mat) ConvertToWithParams(dst *Mat, mt MatType, alpha, beta float32)
- func (m *Mat) CopyTo(dst *Mat)
- func (m *Mat) CopyToWithMask(dst *Mat, mask Mat)
- func (m *Mat) DataPtrFloat32() ([]float32, error)
- func (m *Mat) DataPtrFloat64() ([]float64, error)
- func (m *Mat) DataPtrInt16() ([]int16, error)
- func (m *Mat) DataPtrInt8() ([]int8, error)
- func (m *Mat) DataPtrUint16() ([]uint16, error)
- func (m *Mat) DataPtrUint8() ([]uint8, error)
- func (m *Mat) DivideFloat(val float32)
- func (m *Mat) DivideUChar(val uint8)
- func (m *Mat) Empty() bool
- func (m *Mat) FromPtr(rows int, cols int, mt MatType, prow int, pcol int) (Mat, error)
- func (m *Mat) GetDoubleAt(row int, col int) float64
- func (m *Mat) GetDoubleAt3(x, y, z int) float64
- func (m *Mat) GetFloatAt(row int, col int) float32
- func (m *Mat) GetFloatAt3(x, y, z int) float32
- func (m *Mat) GetIntAt(row int, col int) int32
- func (m *Mat) GetIntAt3(x, y, z int) int32
- func (m *Mat) GetSCharAt(row int, col int) int8
- func (m *Mat) GetSCharAt3(x, y, z int) int8
- func (m *Mat) GetShortAt(row int, col int) int16
- func (m *Mat) GetShortAt3(x, y, z int) int16
- func (m *Mat) GetUCharAt(row int, col int) uint8
- func (m *Mat) GetUCharAt3(x, y, z int) uint8
- func (m *Mat) GetVecbAt(row int, col int) Vecb
- func (m *Mat) GetVecdAt(row int, col int) Vecd
- func (m *Mat) GetVecfAt(row int, col int) Vecf
- func (m *Mat) GetVeciAt(row int, col int) Veci
- func (m *Mat) IsContinuous() bool
- func (m *Mat) Mean() Scalar
- func (m *Mat) MeanWithMask(mask Mat) Scalar
- func (m *Mat) MultiplyFloat(val float32)
- func (m *Mat) MultiplyMatrix(x Mat) Mat
- func (m *Mat) MultiplyUChar(val uint8)
- func (m *Mat) PatchNaNs()
- func (m *Mat) Ptr() C.Mat
- func (m *Mat) Region(rio image.Rectangle) Mat
- func (m *Mat) Reshape(cn int, rows int) Mat
- func (m *Mat) RowRange(start, end int) Mat
- func (m *Mat) Rows() int
- func (m *Mat) SetDoubleAt(row int, col int, val float64)
- func (m *Mat) SetDoubleAt3(x, y, z int, val float64)
- func (m *Mat) SetFloatAt(row int, col int, val float32)
- func (m *Mat) SetFloatAt3(x, y, z int, val float32)
- func (m *Mat) SetIntAt(row int, col int, val int32)
- func (m *Mat) SetIntAt3(x, y, z int, val int32)
- func (m *Mat) SetSCharAt(row int, col int, val int8)
- func (m *Mat) SetSCharAt3(x, y, z int, val int8)
- func (m *Mat) SetShortAt(row int, col int, val int16)
- func (m *Mat) SetShortAt3(x, y, z int, val int16)
- func (m *Mat) SetTo(s Scalar)
- func (m *Mat) SetUCharAt(row int, col int, val uint8)
- func (m *Mat) SetUCharAt3(x, y, z int, val uint8)
- func (m *Mat) Size() (dims []int)
- func (m *Mat) Sqrt() Mat
- func (m *Mat) Step() int
- func (m *Mat) SubtractFloat(val float32)
- func (m *Mat) SubtractUChar(val uint8)
- func (m *Mat) Sum() Scalar
- func (m *Mat) T() Mat
- func (m *Mat) ToBytes() []byte
- func (m *Mat) ToImage() (image.Image, error)
- func (m *Mat) ToImageYUV() (*image.YCbCr, error)
- func (m *Mat) ToImageYUVWithParams(ratio image.YCbCrSubsampleRatio) (*image.YCbCr, error)
- func (m *Mat) Total() int
- func (m *Mat) Type() MatType
type MatType
type MorphShape
type MorphType
type NativeByteBuffer
- func IMEncode(fileExt FileExt, img Mat) (buf *NativeByteBuffer, err error)
- func IMEncodeWithParams(fileExt FileExt, img Mat, params []int) (buf *NativeByteBuffer, err error)
- func (buffer *NativeByteBuffer) Close()
- func (buffer *NativeByteBuffer) GetBytes() []byte
- func (buffer *NativeByteBuffer) Len() int
type NormType
type Point2f
- func NewPoint2f(x, y float32) Point2f
- func PhaseCorrelate(src1, src2, window Mat) (phaseShift Point2f, response float64)
type Point2fVector
- func NewPoint2fVector() Point2fVector
- func NewPoint2fVectorFromMat(mat Mat) Point2fVector
- func NewPoint2fVectorFromPoints(pts []Point2f) Point2fVector
- func (pfv Point2fVector) At(idx int) Point2f
- func (pfv Point2fVector) Close()
- func (pfv Point2fVector) IsNil() bool
- func (pfv Point2fVector) Size() int
- func (pfv Point2fVector) ToPoints() []Point2f
type Point3f
- func NewPoint3f(x, y, z float32) Point3f
type Point3fVector
- func NewPoint3fVector() Point3fVector
- func NewPoint3fVectorFromMat(mat Mat) Point3fVector
- func NewPoint3fVectorFromPoints(pts []Point3f) Point3fVector
- func (pfv Point3fVector) Append(point Point3f)
- func (pfv Point3fVector) At(idx int) Point3f
- func (pfv Point3fVector) Close()
- func (pfv Point3fVector) IsNil() bool
- func (pfv Point3fVector) Size() int
- func (pfv Point3fVector) ToPoints() []Point3f
type PointVector
- func ApproxPolyDP(curve PointVector, epsilon float64, closed bool) PointVector
- func NewPointVector() PointVector
- func NewPointVectorFromMat(mat Mat) PointVector
- func NewPointVectorFromPoints(pts []image.Point) PointVector
- func (pv PointVector) Append(point image.Point)
- func (pv PointVector) At(idx int) image.Point
- func (pv PointVector) Close()
- func (pv PointVector) IsNil() bool
- func (pv PointVector) Size() int
- func (pv PointVector) ToPoints() []image.Point
type Points2fVector
- func NewPoints2fVector() Points2fVector
- func NewPoints2fVectorFromPoints(pts [][]Point2f) Points2fVector
- func (pvs Points2fVector) Append(pv Point2fVector)
- func (pvs Points2fVector) At(idx int) Point2fVector
- func (pvs Points2fVector) Close()
- func (pvs Points2fVector) IsNil() bool
- func (pvs Points2fVector) P() C.Points2fVector
- func (pvs Points2fVector) Size() int
- func (pvs Points2fVector) ToPoints() [][]Point2f
type Points3fVector
- func NewPoints3fVector() Points3fVector
- func NewPoints3fVectorFromPoints(pts [][]Point3f) Points3fVector
- func (pvs Points3fVector) Append(pv Point3fVector)
- func (pvs Points3fVector) At(idx int) Point3fVector
- func (pvs Points3fVector) Close()
- func (pvs Points3fVector) IsNil() bool
- func (pvs Points3fVector) Size() int
- func (pvs Points3fVector) ToPoints() [][]Point3f
type PointsVector
- func FindContours(src Mat, mode RetrievalMode, method ContourApproximationMode) PointsVector
- func FindContoursWithParams(src Mat, hierarchy *Mat, mode RetrievalMode, method ContourApproximationMode) PointsVector
- func NewPointsVector() PointsVector
- func NewPointsVectorFromPoints(pts [][]image.Point) PointsVector
- func (pvs PointsVector) Append(pv PointVector)
- func (pvs PointsVector) At(idx int) PointVector
- func (pvs PointsVector) Close()
- func (pvs PointsVector) IsNil() bool
- func (pvs PointsVector) P() C.PointsVector
- func (pvs PointsVector) Size() int
- func (pvs PointsVector) ToPoints() [][]image.Point
type RNG
- func TheRNG() RNG
- func (r *RNG) Fill(mat *Mat, distType RNGDistType, a, b float64, saturateRange bool)
- func (r *RNG) Gaussian(sigma float64) float64
- func (r *RNG) Next() uint
type RNGDistType
type ReduceTypes
type RetrievalMode
type RotateFlag
type RotatedRect
- func FitEllipse(pts PointVector) RotatedRect
- func MinAreaRect(points PointVector) RotatedRect
type Scalar
- func MorphologyDefaultBorderValue() Scalar
- func NewScalar(v1 float64, v2 float64, v3 float64, v4 float64) Scalar
- func Trace(src Mat) Scalar
type SolveDecompositionFlags
type SortFlags
type TemplateMatchMode
type TermCriteria
- func NewTermCriteria(typ TermCriteriaType, maxCount int, epsilon float64) TermCriteria
type TermCriteriaType
type ThinningType
type ThresholdType
type Vecb
type Vecd
type Vecf
type Veci
type VideoCapture
- func OpenVideoCapture(v interface{}) (*VideoCapture, error)
- func OpenVideoCaptureWithAPI(v interface{}, apiPreference VideoCaptureAPI) (*VideoCapture, error)
- func VideoCaptureDevice(device int) (vc *VideoCapture, err error)
- func VideoCaptureDeviceWithAPI(device int, apiPreference VideoCaptureAPI) (vc *VideoCapture, err error)
- func VideoCaptureFile(uri string) (vc *VideoCapture, err error)
- func VideoCaptureFileWithAPI(uri string, apiPreference VideoCaptureAPI) (vc *VideoCapture, err error)
- func (v *VideoCapture) Close() error
- func (v *VideoCapture) CodecString() string
- func (v VideoCapture) Get(prop VideoCaptureProperties) float64
- func (v *VideoCapture) Grab() bool
- func (v *VideoCapture) IsOpened() bool
- func (v *VideoCapture) Read(m *Mat) bool
- func (v *VideoCapture) Retrieve(m *Mat) bool
- func (v *VideoCapture) Set(prop VideoCaptureProperties, param float64)
- func (v *VideoCapture) ToCodec(codec string) float64
type VideoCaptureAPI
type VideoCaptureProperties
type VideoWriter
- func VideoWriterFile(name string, codec string, fps float64, width int, height int, isColor bool) (vw *VideoWriter, err error)
- func (vw *VideoWriter) Close() error
- func (vw *VideoWriter) IsOpened() bool
- func (vw *VideoWriter) Write(img Mat) error

Constants ¶

View Source

const (
	CalibUseIntrinsicGuess = 0x00001
	CalibFixAspectRatio    = 0x0002
	CalibFixPrincipalPoint = 0x0004
	CalibZeroTangentDist   = 0x00008
	CalibFixFocalLength    = 0x00010
	CalibFixK1             = 0x00020
	CalibFixK2             = 0x00040
	CalibFixK3             = 0x00080
	CalibFixK4             = 0x00800
	CalibFixK5             = 0x01000
	CalibFixK6             = 0x02000
	CalibRationalModel     = 0x04000
	CalibThinPrismModel    = 0x08000
	CalibFixS1S2S3S4       = 0x10000
	CalibTiltedModel       = 0x40000
	CalibFixTauXTauY       = 0x80000
	CalibUseQR             = 0x100000
	CalibFixTangentDist    = 0x200000
	CalibFixIntrinsic      = 0x00100
	CalibSameFocalLength   = 0x00200
	CalibZeroDisparity     = 0x00400
	CalibUseLu             = 1 << 17
	CalibUseExtrinsicGuess = 1 << 22
)

View Source

const (
	// MatChannels1 is a single channel Mat.
	MatChannels1 = 0

	// MatChannels2 is 2 channel Mat.
	MatChannels2 = 8

	// MatChannels3 is 3 channel Mat.
	MatChannels3 = 16

	// MatChannels4 is 4 channel Mat.
	MatChannels4 = 24
)

View Source

const (
	// MatTypeCV8U is a Mat of 8-bit unsigned int
	MatTypeCV8U MatType = 0

	// MatTypeCV8S is a Mat of 8-bit signed int
	MatTypeCV8S MatType = 1

	// MatTypeCV16U is a Mat of 16-bit unsigned int
	MatTypeCV16U MatType = 2

	// MatTypeCV16S is a Mat of 16-bit signed int
	MatTypeCV16S MatType = 3

	// MatTypeCV16SC2 is a Mat of 16-bit signed int with 2 channels
	MatTypeCV16SC2 = MatTypeCV16S + MatChannels2

	// MatTypeCV32S is a Mat of 32-bit signed int
	MatTypeCV32S MatType = 4

	// MatTypeCV32F is a Mat of 32-bit float
	MatTypeCV32F MatType = 5

	// MatTypeCV64F is a Mat of 64-bit float
	MatTypeCV64F MatType = 6

	// MatTypeCV8UC1 is a Mat of 8-bit unsigned int with a single channel
	MatTypeCV8UC1 = MatTypeCV8U + MatChannels1

	// MatTypeCV8UC2 is a Mat of 8-bit unsigned int with 2 channels
	MatTypeCV8UC2 = MatTypeCV8U + MatChannels2

	// MatTypeCV8UC3 is a Mat of 8-bit unsigned int with 3 channels
	MatTypeCV8UC3 = MatTypeCV8U + MatChannels3

	// MatTypeCV8UC4 is a Mat of 8-bit unsigned int with 4 channels
	MatTypeCV8UC4 = MatTypeCV8U + MatChannels4

	// MatTypeCV8SC1 is a Mat of 8-bit signed int with a single channel
	MatTypeCV8SC1 = MatTypeCV8S + MatChannels1

	// MatTypeCV8SC2 is a Mat of 8-bit signed int with 2 channels
	MatTypeCV8SC2 = MatTypeCV8S + MatChannels2

	// MatTypeCV8SC3 is a Mat of 8-bit signed int with 3 channels
	MatTypeCV8SC3 = MatTypeCV8S + MatChannels3

	// MatTypeCV8SC4 is a Mat of 8-bit signed int with 4 channels
	MatTypeCV8SC4 = MatTypeCV8S + MatChannels4

	// MatTypeCV16UC1 is a Mat of 16-bit unsigned int with a single channel
	MatTypeCV16UC1 = MatTypeCV16U + MatChannels1

	// MatTypeCV16UC2 is a Mat of 16-bit unsigned int with 2 channels
	MatTypeCV16UC2 = MatTypeCV16U + MatChannels2

	// MatTypeCV16UC3 is a Mat of 16-bit unsigned int with 3 channels
	MatTypeCV16UC3 = MatTypeCV16U + MatChannels3

	// MatTypeCV16UC4 is a Mat of 16-bit unsigned int with 4 channels
	MatTypeCV16UC4 = MatTypeCV16U + MatChannels4

	// MatTypeCV16SC1 is a Mat of 16-bit signed int with a single channel
	MatTypeCV16SC1 = MatTypeCV16S + MatChannels1

	// MatTypeCV16SC3 is a Mat of 16-bit signed int with 3 channels
	MatTypeCV16SC3 = MatTypeCV16S + MatChannels3

	// MatTypeCV16SC4 is a Mat of 16-bit signed int with 4 channels
	MatTypeCV16SC4 = MatTypeCV16S + MatChannels4

	// MatTypeCV32SC1 is a Mat of 32-bit signed int with a single channel
	MatTypeCV32SC1 = MatTypeCV32S + MatChannels1

	// MatTypeCV32SC2 is a Mat of 32-bit signed int with 2 channels
	MatTypeCV32SC2 = MatTypeCV32S + MatChannels2

	// MatTypeCV32SC3 is a Mat of 32-bit signed int with 3 channels
	MatTypeCV32SC3 = MatTypeCV32S + MatChannels3

	// MatTypeCV32SC4 is a Mat of 32-bit signed int with 4 channels
	MatTypeCV32SC4 = MatTypeCV32S + MatChannels4

	// MatTypeCV32FC1 is a Mat of 32-bit float int with a single channel
	MatTypeCV32FC1 = MatTypeCV32F + MatChannels1

	// MatTypeCV32FC2 is a Mat of 32-bit float int with 2 channels
	MatTypeCV32FC2 = MatTypeCV32F + MatChannels2

	// MatTypeCV32FC3 is a Mat of 32-bit float int with 3 channels
	MatTypeCV32FC3 = MatTypeCV32F + MatChannels3

	// MatTypeCV32FC4 is a Mat of 32-bit float int with 4 channels
	MatTypeCV32FC4 = MatTypeCV32F + MatChannels4

	// MatTypeCV64FC1 is a Mat of 64-bit float int with a single channel
	MatTypeCV64FC1 = MatTypeCV64F + MatChannels1

	// MatTypeCV64FC2 is a Mat of 64-bit float int with 2 channels
	MatTypeCV64FC2 = MatTypeCV64F + MatChannels2

	// MatTypeCV64FC3 is a Mat of 64-bit float int with 3 channels
	MatTypeCV64FC3 = MatTypeCV64F + MatChannels3

	// MatTypeCV64FC4 is a Mat of 64-bit float int with 4 channels
	MatTypeCV64FC4 = MatTypeCV64F + MatChannels4
)

View Source

const (
	//IMWriteJpegQuality is the quality from 0 to 100 for JPEG (the higher is the better). Default value is 95.
	IMWriteJpegQuality = 1

	// IMWriteJpegProgressive enables JPEG progressive feature, 0 or 1, default is False.
	IMWriteJpegProgressive = 2

	// IMWriteJpegOptimize enables JPEG optimization, 0 or 1, default is False.
	IMWriteJpegOptimize = 3

	// IMWriteJpegRstInterval is the JPEG restart interval, 0 - 65535, default is 0 - no restart.
	IMWriteJpegRstInterval = 4

	// IMWriteJpegLumaQuality separates luma quality level, 0 - 100, default is 0 - don't use.
	IMWriteJpegLumaQuality = 5

	// IMWriteJpegChromaQuality separates chroma quality level, 0 - 100, default is 0 - don't use.
	IMWriteJpegChromaQuality = 6

	// IMWritePngCompression is the compression level from 0 to 9 for PNG. A
	// higher value means a smaller size and longer compression time.
	// If specified, strategy is changed to IMWRITE_PNG_STRATEGY_DEFAULT (Z_DEFAULT_STRATEGY).
	// Default value is 1 (best speed setting).
	IMWritePngCompression = 16

	// IMWritePngStrategy is one of cv::IMWritePNGFlags, default is IMWRITE_PNG_STRATEGY_RLE.
	IMWritePngStrategy = 17

	// IMWritePngBilevel is the binary level PNG, 0 or 1, default is 0.
	IMWritePngBilevel = 18

	// IMWritePxmBinary for PPM, PGM, or PBM can be a binary format flag, 0 or 1. Default value is 1.
	IMWritePxmBinary = 32

	// IMWriteWebpQuality is the quality from 1 to 100 for WEBP (the higher is
	// the better). By default (without any parameter) and for quality above
	// 100 the lossless compression is used.
	IMWriteWebpQuality = 64

	// IMWritePamTupletype sets the TUPLETYPE field to the corresponding string
	// value that is defined for the format.
	IMWritePamTupletype = 128

	// IMWritePngStrategyDefault is the value to use for normal data.
	IMWritePngStrategyDefault = 0

	// IMWritePngStrategyFiltered is the value to use for data produced by a
	// filter (or predictor). Filtered data consists mostly of small values
	// with a somewhat random distribution. In this case, the compression
	// algorithm is tuned to compress them better.
	IMWritePngStrategyFiltered = 1

	// IMWritePngStrategyHuffmanOnly forces Huffman encoding only (no string match).
	IMWritePngStrategyHuffmanOnly = 2

	// IMWritePngStrategyRle is the value to use to limit match distances to
	// one (run-length encoding).
	IMWritePngStrategyRle = 3

	// IMWritePngStrategyFixed is the value to prevent the use of dynamic
	// Huffman codes, allowing for a simpler decoder for special applications.
	IMWritePngStrategyFixed = 4
)

View Source

const GoCVVersion = "0.32.10"

GoCVVersion of this package, for display purposes.

Variables ¶

View Source

var ErrEmptyByteSlice = errors.New("empty byte array")

Functions ¶

func AbsDiff ¶

func AbsDiff(src1, src2 Mat, dst *Mat)

AbsDiff calculates the per-element absolute difference between two arrays or between an array and a scalar.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga6fef31bc8c4071cbc114a758a2b79c14

func Accumulate ¶

func Accumulate(src Mat, dst *Mat)

func AccumulateProduct ¶

func AccumulateProduct(src1 Mat, src2 Mat, dst *Mat)

Adds the per-element product of two input images to the accumulator image.

For further details, please see: https://docs.opencv.org/master/d7/df3/group__imgproc__motion.html#ga82518a940ecfda49460f66117ac82520

func AccumulateProductWithMask ¶

func AccumulateProductWithMask(src1 Mat, src2 Mat, dst *Mat, mask Mat)

Adds the per-element product of two input images to the accumulator image with mask.

For further details, please see: https://docs.opencv.org/master/d7/df3/group__imgproc__motion.html#ga82518a940ecfda49460f66117ac82520

func AccumulateSquare ¶

func AccumulateSquare(src Mat, dst *Mat)

Adds the square of a source image to the accumulator image.

For further details, please see: https://docs.opencv.org/master/d7/df3/group__imgproc__motion.html#gacb75e7ffb573227088cef9ceaf80be8c

func AccumulateSquareWithMask ¶

func AccumulateSquareWithMask(src Mat, dst *Mat, mask Mat)

Adds the square of a source image to the accumulator image with mask.

For further details, please see: https://docs.opencv.org/master/d7/df3/group__imgproc__motion.html#gacb75e7ffb573227088cef9ceaf80be8c

func AccumulateWithMask ¶

func AccumulateWithMask(src Mat, dst *Mat, mask Mat)

Adds an image to the accumulator image with mask.

For further details, please see: https://docs.opencv.org/master/d7/df3/group__imgproc__motion.html#ga1a567a79901513811ff3b9976923b199

func AccumulatedWeighted ¶

func AccumulatedWeighted(src Mat, dst *Mat, alpha float64)

Updates a running average.

For further details, please see: https://docs.opencv.org/master/d7/df3/group__imgproc__motion.html#ga4f9552b541187f61f6818e8d2d826bc7

func AccumulatedWeightedWithMask ¶

func AccumulatedWeightedWithMask(src Mat, dst *Mat, alpha float64, mask Mat)

Updates a running average with mask.

For further details, please see: https://docs.opencv.org/master/d7/df3/group__imgproc__motion.html#ga4f9552b541187f61f6818e8d2d826bc7

func AdaptiveThreshold ¶

func AdaptiveThreshold(src Mat, dst *Mat, maxValue float32, adaptiveTyp AdaptiveThresholdType, typ ThresholdType, blockSize int, c float32)

AdaptiveThreshold applies a fixed-level threshold to each array element.

For further details, please see: https://docs.opencv.org/master/d7/d1b/group__imgproc__misc.html#ga72b913f352e4a1b1b397736707afcde3

func Add ¶

func Add(src1, src2 Mat, dst *Mat)

Add calculates the per-element sum of two arrays or an array and a scalar.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga10ac1bfb180e2cfda1701d06c24fdbd6

func AddWeighted ¶

func AddWeighted(src1 Mat, alpha float64, src2 Mat, beta float64, gamma float64, dst *Mat)

AddWeighted calculates the weighted sum of two arrays.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gafafb2513349db3bcff51f54ee5592a19

func ApplyColorMap ¶

func ApplyColorMap(src Mat, dst *Mat, colormapType ColormapTypes)

ApplyColorMap applies a GNU Octave/MATLAB equivalent colormap on a given image.

For further details, please see: https://docs.opencv.org/master/d3/d50/group__imgproc__colormap.html#gadf478a5e5ff49d8aa24e726ea6f65d15

func ApplyCustomColorMap ¶

func ApplyCustomColorMap(src Mat, dst *Mat, customColormap Mat)

ApplyCustomColorMap applies a custom defined colormap on a given image.

For further details, please see: https://docs.opencv.org/master/d3/d50/group__imgproc__colormap.html#gacb22288ddccc55f9bd9e6d492b409cae

func ArcLength ¶

func ArcLength(curve PointVector, isClosed bool) float64

ArcLength calculates a contour perimeter or a curve length.

For further details, please see:

https://docs.opencv.org/master/d3/dc0/group__imgproc__shape.html#ga8d26483c636be6b35c3ec6335798a47c

func ArrowedLine ¶

func ArrowedLine(img *Mat, pt1 image.Point, pt2 image.Point, c color.RGBA, thickness int)

ArrowedLine draws a arrow segment pointing from the first point to the second one.

For further details, please see: https://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#ga0a165a3ca093fd488ac709fdf10c05b2

func BatchDistance ¶

func BatchDistance(src1 Mat, src2 Mat, dist Mat, dtype MatType, nidx Mat, normType NormType, K int, mask Mat, update int, crosscheck bool)

BatchDistance is a naive nearest neighbor finder.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga4ba778a1c57f83233b1d851c83f5a622

func BilateralFilter ¶

func BilateralFilter(src Mat, dst *Mat, diameter int, sigmaColor float64, sigmaSpace float64)

BilateralFilter applies a bilateral filter to an image.

Bilateral filtering is described here: http://www.dai.ed.ac.uk/CVonline/LOCAL_COPIES/MANDUCHI1/Bilateral_Filtering.html

BilateralFilter can reduce unwanted noise very well while keeping edges fairly sharp. However, it is very slow compared to most filters.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#ga9d7064d478c95d60003cf839430737ed

func BitwiseAnd ¶

func BitwiseAnd(src1 Mat, src2 Mat, dst *Mat)

BitwiseAnd computes bitwise conjunction of the two arrays (dst = src1 & src2). Calculates the per-element bit-wise conjunction of two arrays or an array and a scalar.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga60b4d04b251ba5eb1392c34425497e14

func BitwiseAndWithMask ¶

func BitwiseAndWithMask(src1 Mat, src2 Mat, dst *Mat, mask Mat)

BitwiseAndWithMask computes bitwise conjunction of the two arrays (dst = src1 & src2). Calculates the per-element bit-wise conjunction of two arrays or an array and a scalar. It has an additional parameter for a mask.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga60b4d04b251ba5eb1392c34425497e14

func BitwiseNot ¶

func BitwiseNot(src1 Mat, dst *Mat)

BitwiseNot inverts every bit of an array.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga0002cf8b418479f4cb49a75442baee2f

func BitwiseNotWithMask ¶

func BitwiseNotWithMask(src1 Mat, dst *Mat, mask Mat)

BitwiseNotWithMask inverts every bit of an array. It has an additional parameter for a mask.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga0002cf8b418479f4cb49a75442baee2f

func BitwiseOr ¶

func BitwiseOr(src1 Mat, src2 Mat, dst *Mat)

BitwiseOr calculates the per-element bit-wise disjunction of two arrays or an array and a scalar.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gab85523db362a4e26ff0c703793a719b4

func BitwiseOrWithMask ¶

func BitwiseOrWithMask(src1 Mat, src2 Mat, dst *Mat, mask Mat)

BitwiseOrWithMask calculates the per-element bit-wise disjunction of two arrays or an array and a scalar. It has an additional parameter for a mask.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gab85523db362a4e26ff0c703793a719b4

func BitwiseXor ¶

func BitwiseXor(src1 Mat, src2 Mat, dst *Mat)

BitwiseXor calculates the per-element bit-wise "exclusive or" operation on two arrays or an array and a scalar.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga84b2d8188ce506593dcc3f8cd00e8e2c

func BitwiseXorWithMask ¶

func BitwiseXorWithMask(src1 Mat, src2 Mat, dst *Mat, mask Mat)

BitwiseXorWithMask calculates the per-element bit-wise "exclusive or" operation on two arrays or an array and a scalar. It has an additional parameter for a mask.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga84b2d8188ce506593dcc3f8cd00e8e2c

func Blur ¶

func Blur(src Mat, dst *Mat, ksize image.Point)

Blur blurs an image Mat using a normalized box filter.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#ga8c45db9afe636703801b0b2e440fce37

func BorderInterpolate ¶

func BorderInterpolate(p int, len int, borderType CovarFlags) int

BorderInterpolate computes the source location of an extrapolated pixel.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga247f571aa6244827d3d798f13892da58

func BoundingRect ¶

func BoundingRect(contour PointVector) image.Rectangle

BoundingRect calculates the up-right bounding rectangle of a point set.

For further details, please see: https://docs.opencv.org/3.3.0/d3/dc0/group__imgproc__shape.html#gacb413ddce8e48ff3ca61ed7cf626a366

func BoxFilter ¶

func BoxFilter(src Mat, dst *Mat, depth int, ksize image.Point)

BoxFilter blurs an image using the box filter.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#gad533230ebf2d42509547d514f7d3fbc3

func BoxPoints ¶

func BoxPoints(rect RotatedRect, pts *Mat)

BoxPoints finds the four vertices of a rotated rect. Useful to draw the rotated rectangle.

For further Details, please see: https://docs.opencv.org/3.3.0/d3/dc0/group__imgproc__shape.html#gaf78d467e024b4d7936cf9397185d2f5c

func CalcBackProject ¶

func CalcBackProject(src []Mat, channels []int, hist Mat, backProject *Mat, ranges []float64, uniform bool)

CalcBackProject calculates the back projection of a histogram.

For futher details, please see: https://docs.opencv.org/3.4/d6/dc7/group__imgproc__hist.html#ga3a0af640716b456c3d14af8aee12e3ca

func CalcCovarMatrix ¶

func CalcCovarMatrix(samples Mat, covar *Mat, mean *Mat, flags CovarFlags, ctype MatType)

CalcCovarMatrix calculates the covariance matrix of a set of vectors.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga017122d912af19d7d0d2cccc2d63819f

func CalcHist ¶

func CalcHist(src []Mat, channels []int, mask Mat, hist *Mat, size []int, ranges []float64, acc bool)

CalcHist Calculates a histogram of a set of images

For futher details, please see: https://docs.opencv.org/master/d6/dc7/group__imgproc__hist.html#ga6ca1876785483836f72a77ced8ea759a

func CalibrateCamera ¶

func CalibrateCamera(objectPoints Points3fVector, imagePoints Points2fVector, imageSize image.Point,
	cameraMatrix *Mat, distCoeffs *Mat, rvecs *Mat, tvecs *Mat, calibFlag CalibFlag) float64

CalibrateCamera finds the camera intrinsic and extrinsic parameters from several views of a calibration pattern.

For further details, please see: https://docs.opencv.org/master/d9/d0c/group__calib3d.html#ga3207604e4b1a1758aa66acb6ed5aa65d

func Canny ¶

func Canny(src Mat, edges *Mat, t1 float32, t2 float32)

Canny finds edges in an image using the Canny algorithm. The function finds edges in the input image image and marks them in the output map edges using the Canny algorithm. The smallest value between threshold1 and threshold2 is used for edge linking. The largest value is used to find initial segments of strong edges. See http://en.wikipedia.org/wiki/Canny_edge_detector

For further details, please see: http://docs.opencv.org/master/dd/d1a/group__imgproc__feature.html#ga04723e007ed888ddf11d9ba04e2232de

func CartToPolar ¶

func CartToPolar(x Mat, y Mat, magnitude *Mat, angle *Mat, angleInDegrees bool)

CartToPolar calculates the magnitude and angle of 2D vectors.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gac5f92f48ec32cacf5275969c33ee837d

func CheckRange ¶

func CheckRange(src Mat) bool

CheckRange checks every element of an input array for invalid values.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga2bd19d89cae59361416736f87e3c7a64

func Circle ¶

func Circle(img *Mat, center image.Point, radius int, c color.RGBA, thickness int)

Circle draws a circle.

For further details, please see: https://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#gaf10604b069374903dbd0f0488cb43670

func CircleWithParams ¶

func CircleWithParams(img *Mat, center image.Point, radius int, c color.RGBA, thickness int, lineType LineType, shift int)

CircleWithParams draws a circle.

For further details, please see: https://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#gaf10604b069374903dbd0f0488cb43670

func ClipLine ¶

func ClipLine(imgSize image.Point, pt1 image.Point, pt2 image.Point) bool

ClipLine clips the line against the image rectangle. For further details, please see: https://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#gaf483cb46ad6b049bc35ec67052ef1c2c

func Compare ¶

func Compare(src1 Mat, src2 Mat, dst *Mat, ct CompareType)

Compare performs the per-element comparison of two arrays or an array and scalar value.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga303cfb72acf8cbb36d884650c09a3a97

func CompareHist ¶

func CompareHist(hist1 Mat, hist2 Mat, method HistCompMethod) float32

CompareHist Compares two histograms.

For further details, please see: https://docs.opencv.org/master/d6/dc7/group__imgproc__hist.html#gaf4190090efa5c47cb367cf97a9a519bd

func CompleteSymm ¶

func CompleteSymm(m Mat, lowerToUpper bool)

CompleteSymm copies the lower or the upper half of a square matrix to its another half.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gaa9d88dcd0e54b6d1af38d41f2a3e3d25

func ConnectedComponents ¶

func ConnectedComponents(src Mat, labels *Mat) int

ConnectedComponents computes the connected components labeled image of boolean image.

For further details, please see: https://docs.opencv.org/master/d3/dc0/group__imgproc__shape.html#gaedef8c7340499ca391d459122e51bef5

func ConnectedComponentsWithParams ¶

func ConnectedComponentsWithParams(src Mat, labels *Mat, conn int, ltype MatType,
	ccltype ConnectedComponentsAlgorithmType) int

ConnectedComponents computes the connected components labeled image of boolean image.

For further details, please see: https://docs.opencv.org/master/d3/dc0/group__imgproc__shape.html#gaedef8c7340499ca391d459122e51bef5

func ConnectedComponentsWithStats ¶

func ConnectedComponentsWithStats(src Mat, labels *Mat, stats *Mat, centroids *Mat) int

ConnectedComponentsWithStats computes the connected components labeled image of boolean image and also produces a statistics output for each label.

For further details, please see: https://docs.opencv.org/master/d3/dc0/group__imgproc__shape.html#ga107a78bf7cd25dec05fb4dfc5c9e765f

func ConnectedComponentsWithStatsWithParams ¶

func ConnectedComponentsWithStatsWithParams(src Mat, labels *Mat, stats *Mat, centroids *Mat,
	conn int, ltype MatType, ccltype ConnectedComponentsAlgorithmType) int

ConnectedComponentsWithStats computes the connected components labeled image of boolean image and also produces a statistics output for each label.

For further details, please see: https://docs.opencv.org/master/d3/dc0/group__imgproc__shape.html#ga107a78bf7cd25dec05fb4dfc5c9e765f

func ContourArea ¶

func ContourArea(contour PointVector) float64

ContourArea calculates a contour area.

For further details, please see: https://docs.opencv.org/3.3.0/d3/dc0/group__imgproc__shape.html#ga2c759ed9f497d4a618048a2f56dc97f1

func ConvertScaleAbs ¶

func ConvertScaleAbs(src Mat, dst *Mat, alpha float64, beta float64)

ConvertScaleAbs scales, calculates absolute values, and converts the result to 8-bit.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga3460e9c9f37b563ab9dd550c4d8c4e7d

func ConvexHull ¶

func ConvexHull(points PointVector, hull *Mat, clockwise bool, returnPoints bool)

ConvexHull finds the convex hull of a point set.

For further details, please see: https://docs.opencv.org/master/d3/dc0/group__imgproc__shape.html#ga014b28e56cb8854c0de4a211cb2be656

func ConvexityDefects ¶

func ConvexityDefects(contour PointVector, hull Mat, result *Mat)

ConvexityDefects finds the convexity defects of a contour.

For further details, please see: https://docs.opencv.org/master/d3/dc0/group__imgproc__shape.html#gada4437098113fd8683c932e0567f47ba

func CopyMakeBorder ¶

func CopyMakeBorder(src Mat, dst *Mat, top int, bottom int, left int, right int, bt BorderType, value color.RGBA)

CopyMakeBorder forms a border around an image (applies padding).

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga2ac1049c2c3dd25c2b41bffe17658a36

func CornerSubPix ¶

func CornerSubPix(img Mat, corners *Mat, winSize image.Point, zeroZone image.Point, criteria TermCriteria)

CornerSubPix Refines the corner locations. The function iterates to find the sub-pixel accurate location of corners or radial saddle points.

For further details, please see: https://docs.opencv.org/master/dd/d1a/group__imgproc__feature.html#ga354e0d7c86d0d9da75de9b9701a9a87e

func CountNonZero ¶

func CountNonZero(src Mat) int

CountNonZero counts non-zero array elements.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gaa4b89393263bb4d604e0fe5986723914

func CvtColor ¶

func CvtColor(src Mat, dst *Mat, code ColorConversionCode)

CvtColor converts an image from one color space to another. It converts the src Mat image to the dst Mat using the code param containing the desired ColorConversionCode color space.

For further details, please see: http://docs.opencv.org/master/d7/d1b/group__imgproc__misc.html#ga4e0972be5de079fed4e3a10e24ef5ef0

func DCT ¶

func DCT(src Mat, dst *Mat, flags DftFlags)

DCT performs a forward or inverse discrete Cosine transform of 1D or 2D array.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga85aad4d668c01fbd64825f589e3696d4

func DFT ¶

func DFT(src Mat, dst *Mat, flags DftFlags)

DFT performs a forward or inverse Discrete Fourier Transform (DFT) of a 1D or 2D floating-point array.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gadd6cf9baf2b8b704a11b5f04aaf4f39d

func Determinant ¶

func Determinant(src Mat) float64

Determinant returns the determinant of a square floating-point matrix.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gaf802bd9ca3e07b8b6170645ef0611d0c

func Dilate ¶

func Dilate(src Mat, dst *Mat, kernel Mat)

Dilate dilates an image by using a specific structuring element.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#ga4ff0f3318642c4f469d0e11f242f3b6c

func DilateWithParams ¶

func DilateWithParams(src Mat, dst *Mat, kernel Mat, anchor image.Point, iterations, borderType BorderType, borderValue color.RGBA)

DilateWithParams dilates an image by using a specific structuring element.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#ga4ff0f3318642c4f469d0e11f242f3b6c

func DistanceTransform ¶

func DistanceTransform(src Mat, dst *Mat, labels *Mat, distType DistanceTypes, maskSize DistanceTransformMasks, labelType DistanceTransformLabelTypes)

DistanceTransform Calculates the distance to the closest zero pixel for each pixel of the source image.

For further details, please see: https://docs.opencv.org/master/d7/d1b/group__imgproc__misc.html#ga8a0b7fdfcb7a13dde018988ba3a43042

func Divide ¶

func Divide(src1 Mat, src2 Mat, dst *Mat)

Divide performs the per-element division on two arrays or an array and a scalar.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga6db555d30115642fedae0cda05604874

func DrawChessboardCorners ¶

func DrawChessboardCorners(image *Mat, patternSize image.Point, corners Mat, patternWasFound bool)

DrawChessboardCorners renders the detected chessboard corners.

For further details, please see: https://docs.opencv.org/master/d9/d0c/group__calib3d.html#ga6a10b0bb120c4907e5eabbcd22319022

func DrawContours ¶

func DrawContours(img *Mat, contours PointsVector, contourIdx int, c color.RGBA, thickness int)

DrawContours draws contours outlines or filled contours.

For further details, please see: https://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#ga746c0625f1781f1ffc9056259103edbc

func DrawContoursWithParams ¶

func DrawContoursWithParams(img *Mat, contours PointsVector, contourIdx int, c color.RGBA, thickness int, lineType LineType, hierarchy Mat, maxLevel int, offset image.Point)

DrawContoursWithParams draws contours outlines or filled contours.

For further details, please see: https://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#ga746c0625f1781f1ffc9056259103edbc

func Eigen ¶

func Eigen(src Mat, eigenvalues *Mat, eigenvectors *Mat) bool

Eigen calculates eigenvalues and eigenvectors of a symmetric matrix.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga9fa0d58657f60eaa6c71f6fbb40456e3

func EigenNonSymmetric ¶

func EigenNonSymmetric(src Mat, eigenvalues *Mat, eigenvectors *Mat)

EigenNonSymmetric calculates eigenvalues and eigenvectors of a non-symmetric matrix (real eigenvalues only).

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gaf51987e03cac8d171fbd2b327cf966f6

func Ellipse ¶

func Ellipse(img *Mat, center, axes image.Point, angle, startAngle, endAngle float64, c color.RGBA, thickness int)

Ellipse draws a simple or thick elliptic arc or fills an ellipse sector.

For further details, please see: https://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#ga28b2267d35786f5f890ca167236cbc69

func EllipseWithParams ¶

func EllipseWithParams(img *Mat, center, axes image.Point, angle, startAngle, endAngle float64, c color.RGBA, thickness int, lineType LineType, shift int)

Ellipse draws a simple or thick elliptic arc or fills an ellipse sector.

For further details, please see: https://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#ga28b2267d35786f5f890ca167236cbc69

func EqualizeHist ¶

func EqualizeHist(src Mat, dst *Mat)

EqualizeHist normalizes the brightness and increases the contrast of the image.

For further details, please see: https://docs.opencv.org/master/d6/dc7/group__imgproc__hist.html#ga7e54091f0c937d49bf84152a16f76d6e

func Erode ¶

func Erode(src Mat, dst *Mat, kernel Mat)

Erode erodes an image by using a specific structuring element.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#gaeb1e0c1033e3f6b891a25d0511362aeb

func ErodeWithParams ¶

func ErodeWithParams(src Mat, dst *Mat, kernel Mat, anchor image.Point, iterations, borderType int)

ErodeWithParams erodes an image by using a specific structuring element.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#gaeb1e0c1033e3f6b891a25d0511362aeb

func EstimateNewCameraMatrixForUndistortRectify ¶

func EstimateNewCameraMatrixForUndistortRectify(k, d Mat, imgSize image.Point, r Mat, p *Mat, balance float64, newSize image.Point, fovScale float64)

EstimateNewCameraMatrixForUndistortRectify estimates new camera matrix for undistortion or rectification.

For further details, please see: https://docs.opencv.org/master/db/d58/group__calib3d__fisheye.html#ga384940fdf04c03e362e94b6eb9b673c9

func Exp ¶

func Exp(src Mat, dst *Mat)

Exp calculates the exponent of every array element.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga3e10108e2162c338f1b848af619f39e5

func ExtractChannel ¶

func ExtractChannel(src Mat, dst *Mat, coi int)

ExtractChannel extracts a single channel from src (coi is 0-based index).

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gacc6158574aa1f0281878c955bcf35642

func FillPoly ¶

func FillPoly(img *Mat, pts PointsVector, c color.RGBA)

FillPoly fills the area bounded by one or more polygons.

For more information, see: https://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#gaf30888828337aa4c6b56782b5dfbd4b7

func FillPolyWithParams ¶

func FillPolyWithParams(img *Mat, pts PointsVector, c color.RGBA, lineType LineType, shift int, offset image.Point)

FillPolyWithParams fills the area bounded by one or more polygons.

For more information, see: https://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#gaf30888828337aa4c6b56782b5dfbd4b7

func Filter2D ¶

func Filter2D(src Mat, dst *Mat, ddepth MatType, kernel Mat, anchor image.Point, delta float64, borderType BorderType)

Filter2D applies an arbitrary linear filter to an image.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#ga27c049795ce870216ddfb366086b5a04

func FindChessboardCorners ¶

func FindChessboardCorners(image Mat, patternSize image.Point, corners *Mat, flags CalibCBFlag) bool

FindChessboardCorners finds the positions of internal corners of the chessboard.

For further details, please see: https://docs.opencv.org/master/d9/d0c/group__calib3d.html#ga93efa9b0aa890de240ca32b11253dd4a

func FindChessboardCornersSB ¶

func FindChessboardCornersSB(image Mat, patternSize image.Point, corners *Mat, flags CalibCBFlag) bool

FindChessboardCorners finds the positions of internal corners of the chessboard using a sector based approach.

For further details, please see: https://docs.opencv.org/master/d9/d0c/group__calib3d.html#gadc5bcb05cb21cf1e50963df26986d7c9

func FindChessboardCornersSBWithMeta ¶

func FindChessboardCornersSBWithMeta(image Mat, patternSize image.Point, corners *Mat, flags CalibCBFlag, meta *Mat) bool

FindChessboardCornersSBWithMeta finds the positions of internal corners of the chessboard using a sector based approach.

For further details, please see: https://docs.opencv.org/master/d9/d0c/group__calib3d.html#ga93efa9b0aa890de240ca32b11253dd4a

func FindNonZero ¶

func FindNonZero(src Mat, idx *Mat)

FindNonZero returns the list of locations of non-zero pixels.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gaed7df59a3539b4cc0fe5c9c8d7586190

func FisheyeUndistortImage ¶

func FisheyeUndistortImage(distorted Mat, undistorted *Mat, k, d Mat)

FisheyeUndistortImage transforms an image to compensate for fisheye lens distortion

func FisheyeUndistortImageWithParams ¶

func FisheyeUndistortImageWithParams(distorted Mat, undistorted *Mat, k, d, knew Mat, size image.Point)

FisheyeUndistortImageWithParams transforms an image to compensate for fisheye lens distortion with Knew matrix

func FisheyeUndistortPoints ¶

func FisheyeUndistortPoints(distorted Mat, undistorted *Mat, k, d, r, p Mat)

FisheyeUndistortPoints transforms points to compensate for fisheye lens distortion

For further details, please see: https://docs.opencv.org/master/db/d58/group__calib3d__fisheye.html#gab738cdf90ceee97b2b52b0d0e7511541

func FitLine ¶

func FitLine(pts PointVector, line *Mat, distType DistanceTypes, param, reps, aeps float64)

FitLine fits a line to a 2D or 3D point set.

For further details, please see: https://docs.opencv.org/master/d3/dc0/group__imgproc__shape.html#gaf849da1fdafa67ee84b1e9a23b93f91f

func Flip ¶

func Flip(src Mat, dst *Mat, flipCode int)

Flip flips a 2D array around horizontal(0), vertical(1), or both axes(-1).

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gaca7be533e3dac7feb70fc60635adf441

func GaussianBlur ¶

func GaussianBlur(src Mat, dst *Mat, ksize image.Point, sigmaX float64,
	sigmaY float64, borderType BorderType)

GaussianBlur blurs an image Mat using a Gaussian filter. The function convolves the src Mat image into the dst Mat using the specified Gaussian kernel params.

For further details, please see: http://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#gaabe8c836e97159a9193fb0b11ac52cf1

func Gemm ¶

func Gemm(src1, src2 Mat, alpha float64, src3 Mat, beta float64, dst *Mat, flags int)

Gemm performs generalized matrix multiplication.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gacb6e64071dffe36434e1e7ee79e7cb35

func GetOptimalDFTSize ¶

func GetOptimalDFTSize(vecsize int) int

GetOptimalDFTSize returns the optimal Discrete Fourier Transform (DFT) size for a given vector size.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga6577a2e59968936ae02eb2edde5de299

func GetRectSubPix ¶

func GetRectSubPix(src Mat, patchSize image.Point, center image.Point, dst *Mat)

GetRectSubPix retrieves a pixel rectangle from an image with sub-pixel accuracy.

For further details, please see: https://docs.opencv.org/master/da/d54/group__imgproc__transform.html#ga77576d06075c1a4b6ba1a608850cd614

func GetTextSize ¶

func GetTextSize(text string, fontFace HersheyFont, fontScale float64, thickness int) image.Point

GetTextSize calculates the width and height of a text string. It returns an image.Point with the size required to draw text using a specific font face, scale, and thickness.

For further details, please see: http://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#ga3d2abfcb995fd2db908c8288199dba82

func GetTextSizeWithBaseline ¶

func GetTextSizeWithBaseline(text string, fontFace HersheyFont, fontScale float64, thickness int) (image.Point, int)

GetTextSizeWithBaseline calculates the width and height of a text string including the basline of the text. It returns an image.Point with the size required to draw text using a specific font face, scale, and thickness as well as its baseline.

For further details, please see: http://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#ga3d2abfcb995fd2db908c8288199dba82

func GetTickCount ¶

func GetTickCount() float64

GetTickCount returns the number of ticks.

For further details, please see: https://docs.opencv.org/master/db/de0/group__core__utils.html#gae73f58000611a1af25dd36d496bf4487

func GetTickFrequency ¶

func GetTickFrequency() float64

GetTickFrequency returns the number of ticks per second.

For further details, please see: https://docs.opencv.org/master/db/de0/group__core__utils.html#ga705441a9ef01f47acdc55d87fbe5090c

func GoodFeaturesToTrack ¶

func GoodFeaturesToTrack(img Mat, corners *Mat, maxCorners int, quality float64, minDist float64)

GoodFeaturesToTrack determines strong corners on an image. The function finds the most prominent corners in the image or in the specified image region.

For further details, please see: https://docs.opencv.org/master/dd/d1a/group__imgproc__feature.html#ga1d6bb77486c8f92d79c8793ad995d541

func GrabCut ¶

func GrabCut(img Mat, mask *Mat, r image.Rectangle, bgdModel *Mat, fgdModel *Mat, iterCount int, mode GrabCutMode)

Grabcut runs the GrabCut algorithm. The function implements the GrabCut image segmentation algorithm. For further details, please see: https://docs.opencv.org/master/d7/d1b/group__imgproc__misc.html#ga909c1dda50efcbeaa3ce126be862b37f

func Hconcat ¶

func Hconcat(src1, src2 Mat, dst *Mat)

Hconcat applies horizontal concatenation to given matrices.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gaab5ceee39e0580f879df645a872c6bf7

func HoughCircles ¶

func HoughCircles(src Mat, circles *Mat, method HoughMode, dp, minDist float64)

HoughCircles finds circles in a grayscale image using the Hough transform. The only "method" currently supported is HoughGradient. If you want to pass more parameters, please see `HoughCirclesWithParams`.

For further details, please see: https://docs.opencv.org/master/dd/d1a/group__imgproc__feature.html#ga47849c3be0d0406ad3ca45db65a25d2d

func HoughCirclesWithParams ¶

func HoughCirclesWithParams(src Mat, circles *Mat, method HoughMode, dp, minDist, param1, param2 float64, minRadius, maxRadius int)

HoughCirclesWithParams finds circles in a grayscale image using the Hough transform. The only "method" currently supported is HoughGradient.

For further details, please see: https://docs.opencv.org/master/dd/d1a/group__imgproc__feature.html#ga47849c3be0d0406ad3ca45db65a25d2d

func HoughLines ¶

func HoughLines(src Mat, lines *Mat, rho float32, theta float32, threshold int)

HoughLines implements the standard or standard multi-scale Hough transform algorithm for line detection. For a good explanation of Hough transform, see: http://homepages.inf.ed.ac.uk/rbf/HIPR2/hough.htm

For further details, please see: http://docs.opencv.org/master/dd/d1a/group__imgproc__feature.html#ga46b4e588934f6c8dfd509cc6e0e4545a

func HoughLinesP ¶

func HoughLinesP(src Mat, lines *Mat, rho float32, theta float32, threshold int)

HoughLinesP implements the probabilistic Hough transform algorithm for line detection. For a good explanation of Hough transform, see: http://homepages.inf.ed.ac.uk/rbf/HIPR2/hough.htm

For further details, please see: http://docs.opencv.org/master/dd/d1a/group__imgproc__feature.html#ga8618180a5948286384e3b7ca02f6feeb

func HoughLinesPWithParams ¶

func HoughLinesPWithParams(src Mat, lines *Mat, rho float32, theta float32, threshold int, minLineLength float32, maxLineGap float32)

func HoughLinesPointSet ¶

func HoughLinesPointSet(points Mat, lines *Mat, linesMax int, threshold int,
	minRho float32, maxRho float32, rhoStep float32,
	minTheta float32, maxTheta float32, thetaStep float32)

HoughLinesPointSet implements the Hough transform algorithm for line detection on a set of points. For a good explanation of Hough transform, see: http://homepages.inf.ed.ac.uk/rbf/HIPR2/hough.htm

For further details, please see: https://docs.opencv.org/master/dd/d1a/group__imgproc__feature.html#ga2858ef61b4e47d1919facac2152a160e

func IDCT ¶

func IDCT(src Mat, dst *Mat, flags int)

IDCT calculates the inverse Discrete Cosine Transform of a 1D or 2D array.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga77b168d84e564c50228b69730a227ef2

func IDFT ¶

func IDFT(src Mat, dst *Mat, flags, nonzeroRows int)

IDFT calculates the inverse Discrete Fourier Transform of a 1D or 2D array.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gaa708aa2d2e57a508f968eb0f69aa5ff1

func IMWrite ¶

func IMWrite(name string, img Mat) bool

IMWrite writes a Mat to an image file.

For further details, please see: http://docs.opencv.org/master/d4/da8/group__imgcodecs.html#gabbc7ef1aa2edfaa87772f1202d67e0ce

func IMWriteWithParams ¶

func IMWriteWithParams(name string, img Mat, params []int) bool

IMWriteWithParams writes a Mat to an image file. With that func you can pass compression parameters.

For further details, please see: http://docs.opencv.org/master/d4/da8/group__imgcodecs.html#gabbc7ef1aa2edfaa87772f1202d67e0ce

func InRange ¶

func InRange(src, lb, ub Mat, dst *Mat)

InRange checks if array elements lie between the elements of two Mat arrays.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga48af0ab51e36436c5d04340e036ce981

func InRangeWithScalar ¶

func InRangeWithScalar(src Mat, lb, ub Scalar, dst *Mat)

InRangeWithScalar checks if array elements lie between the elements of two Scalars

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga48af0ab51e36436c5d04340e036ce981

func InitUndistortRectifyMap ¶

func InitUndistortRectifyMap(cameraMatrix Mat, distCoeffs Mat, r Mat, newCameraMatrix Mat, size image.Point, m1type int, map1 Mat, map2 Mat)

InitUndistortRectifyMap computes the joint undistortion and rectification transformation and represents the result in the form of maps for remap

For further details, please see: https://docs.opencv.org/master/d9/d0c/group__calib3d.html#ga7dfb72c9cf9780a347fbe3d1c47e5d5a

func InsertChannel ¶

func InsertChannel(src Mat, dst *Mat, coi int)

InsertChannel inserts a single channel to dst (coi is 0-based index) (it replaces channel i with another in dst).

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga1d4bd886d35b00ec0b764cb4ce6eb515

func Integral ¶

func Integral(src Mat, sum *Mat, sqsum *Mat, tilted *Mat)

Integral calculates one or more integral images for the source image. For further details, please see: https://docs.opencv.org/master/d7/d1b/group__imgproc__misc.html#ga97b87bec26908237e8ba0f6e96d23e28

func Invert ¶

func Invert(src Mat, dst *Mat, flags SolveDecompositionFlags) float64

Invert finds the inverse or pseudo-inverse of a matrix.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gad278044679d4ecf20f7622cc151aaaa2

func InvertAffineTransform ¶

func InvertAffineTransform(src Mat, dst *Mat)

func KMeans ¶

func KMeans(data Mat, k int, bestLabels *Mat, criteria TermCriteria, attempts int, flags KMeansFlags, centers *Mat) float64

KMeans finds centers of clusters and groups input samples around the clusters.

For further details, please see: https://docs.opencv.org/master/d5/d38/group__core__cluster.html#ga9a34dc06c6ec9460e90860f15bcd2f88

func KMeansPoints ¶

func KMeansPoints(points PointVector, k int, bestLabels *Mat, criteria TermCriteria, attempts int, flags KMeansFlags, centers *Mat) float64

KMeansPoints finds centers of clusters and groups input samples around the clusters.

For further details, please see: https://docs.opencv.org/master/d5/d38/group__core__cluster.html#ga9a34dc06c6ec9460e90860f15bcd2f88

func LUT ¶

func LUT(src, wbLUT Mat, dst *Mat)

LUT performs a look-up table transform of an array.

The function LUT fills the output array with values from the look-up table. Indices of the entries are taken from the input array.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gab55b8d062b7f5587720ede032d34156f

func Laplacian ¶

func Laplacian(src Mat, dst *Mat, dDepth MatType, size int, scale float64,
	delta float64, borderType BorderType)

Laplacian calculates the Laplacian of an image.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#gad78703e4c8fe703d479c1860d76429e6

func Line ¶

func Line(img *Mat, pt1 image.Point, pt2 image.Point, c color.RGBA, thickness int)

Line draws a line segment connecting two points.

For further details, please see: https://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#ga7078a9fae8c7e7d13d24dac2520ae4a2

func LinearPolar ¶

func LinearPolar(src Mat, dst *Mat, center image.Point, maxRadius float64, flags InterpolationFlags)

LinearPolar remaps an image to polar coordinates space.

For further details, please see: https://docs.opencv.org/master/da/d54/group__imgproc__transform.html#gaa38a6884ac8b6e0b9bed47939b5362f3

func Log ¶

func Log(src Mat, dst *Mat)

Log calculates the natural logarithm of every array element.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga937ecdce4679a77168730830a955bea7

func LogPolar ¶

func LogPolar(src Mat, dst *Mat, center image.Point, m float64, flags InterpolationFlags)

LogPolar remaps an image to semilog-polar coordinates space.

For further details, please see: https://docs.opencv.org/master/da/d54/group__imgproc__transform.html#gaec3a0b126a85b5ca2c667b16e0ae022d

func Magnitude ¶

func Magnitude(x, y Mat, magnitude *Mat)

Magnitude calculates the magnitude of 2D vectors.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga6d3b097586bca4409873d64a90fe64c3

func MatchTemplate ¶

func MatchTemplate(image Mat, templ Mat, result *Mat, method TemplateMatchMode, mask Mat)

MatchTemplate compares a template against overlapped image regions.

For further details, please see: https://docs.opencv.org/master/df/dfb/group__imgproc__object.html#ga586ebfb0a7fb604b35a23d85391329be

func Max ¶

func Max(src1, src2 Mat, dst *Mat)

Max calculates per-element maximum of two arrays or an array and a scalar.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gacc40fa15eac0fb83f8ca70b7cc0b588d

func MeanStdDev ¶

func MeanStdDev(src Mat, dst *Mat, dstStdDev *Mat)

MeanStdDev calculates a mean and standard deviation of array elements.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga846c858f4004d59493d7c6a4354b301d

func MedianBlur ¶

func MedianBlur(src Mat, dst *Mat, ksize int)

MedianBlur blurs an image using the median filter.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#ga564869aa33e58769b4469101aac458f9

func Merge ¶

func Merge(mv []Mat, dst *Mat)

Merge creates one multi-channel array out of several single-channel ones.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga7d7b4d6c6ee504b30a20b1680029c7b4

func Min ¶

func Min(src1, src2 Mat, dst *Mat)

Min calculates per-element minimum of two arrays or an array and a scalar.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga9af368f182ee76d0463d0d8d5330b764

func MinEnclosingCircle ¶

func MinEnclosingCircle(pts PointVector) (x, y, radius float32)

MinEnclosingCircle finds a circle of the minimum area enclosing the input 2D point set.

For further details, please see: https://docs.opencv.org/3.4/d3/dc0/group__imgproc__shape.html#ga8ce13c24081bbc7151e9326f412190f1

func MinMaxIdx ¶

func MinMaxIdx(input Mat) (minVal, maxVal float32, minIdx, maxIdx int)

MinMaxIdx finds the global minimum and maximum in an array.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga7622c466c628a75d9ed008b42250a73f

func MinMaxLoc ¶

func MinMaxLoc(input Mat) (minVal, maxVal float32, minLoc, maxLoc image.Point)

MinMaxLoc finds the global minimum and maximum in an array.

For further details, please see: https://docs.opencv.org/trunk/d2/de8/group__core__array.html#gab473bf2eb6d14ff97e89b355dac20707

func MixChannels ¶

func MixChannels(src []Mat, dst []Mat, fromTo []int)

Copies specified channels from input arrays to the specified channels of output arrays.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga51d768c270a1cdd3497255017c4504be

func Moments ¶

func Moments(src Mat, binaryImage bool) map[string]float64

Moments calculates all of the moments up to the third order of a polygon or rasterized shape.

For further details, please see: https://docs.opencv.org/master/d3/dc0/group__imgproc__shape.html#ga556a180f43cab22649c23ada36a8a139

func MorphologyEx ¶

func MorphologyEx(src Mat, dst *Mat, op MorphType, kernel Mat)

MorphologyEx performs advanced morphological transformations.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#ga67493776e3ad1a3df63883829375201f

func MorphologyExWithParams ¶

func MorphologyExWithParams(src Mat, dst *Mat, op MorphType, kernel Mat, iterations int, borderType BorderType)

MorphologyExWithParams performs advanced morphological transformations.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#ga67493776e3ad1a3df63883829375201f

func MulSpectrums ¶

func MulSpectrums(a Mat, b Mat, dst *Mat, flags DftFlags)

Mulspectrums performs the per-element multiplication of two Fourier spectrums.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga3ab38646463c59bf0ce962a9d51db64f

func Multiply ¶

func Multiply(src1 Mat, src2 Mat, dst *Mat)

Multiply calculates the per-element scaled product of two arrays. Both input arrays must be of the same size and the same type.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga979d898a58d7f61c53003e162e7ad89f

func MultiplyWithParams ¶

func MultiplyWithParams(src1 Mat, src2 Mat, dst *Mat, scale float64, dtype MatType)

MultiplyWithParams calculates the per-element scaled product of two arrays. Both input arrays must be of the same size and the same type.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga979d898a58d7f61c53003e162e7ad89f

func Norm ¶

func Norm(src1 Mat, normType NormType) float64

Norm calculates the absolute norm of an array.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga7c331fb8dd951707e184ef4e3f21dd33

func NormWithMats ¶

func NormWithMats(src1 Mat, src2 Mat, normType NormType) float64

Norm calculates the absolute difference/relative norm of two arrays.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga7c331fb8dd951707e184ef4e3f21dd33

func Normalize ¶

func Normalize(src Mat, dst *Mat, alpha float64, beta float64, typ NormType)

Normalize normalizes the norm or value range of an array.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga87eef7ee3970f86906d69a92cbf064bd

func OpenCVBuildInformation ¶

func OpenCVBuildInformation() string

func OpenCVVersion ¶

func OpenCVVersion() string

OpenCVVersion returns the current OpenCV lib version

func PerspectiveTransform ¶

func PerspectiveTransform(src Mat, dst *Mat, tm Mat)

PerspectiveTransform performs the perspective matrix transformation of vectors.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gad327659ac03e5fd6894b90025e6900a7

func Phase ¶

func Phase(x, y Mat, angle *Mat, angleInDegrees bool)

Phase calculates the rotation angle of 2D vectors.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga9db9ca9b4d81c3bde5677b8f64dc0137

func PointPolygonTest ¶

func PointPolygonTest(pts PointVector, pt image.Point, measureDist bool) float64

PointPolygonTest performs a point-in-contour test.

For further details, please see: https://docs.opencv.org/master/d3/dc0/group__imgproc__shape.html#ga1a539e8db2135af2566103705d7a5722

func PolarToCart ¶

func PolarToCart(magnitude Mat, degree Mat, x *Mat, y *Mat, angleInDegrees bool)

PolatToCart calculates x and y coordinates of 2D vectors from their magnitude and angle.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga581ff9d44201de2dd1b40a50db93d665

func Polylines ¶

func Polylines(img *Mat, pts PointsVector, isClosed bool, c color.RGBA, thickness int)

Polylines draws several polygonal curves.

For more information, see: https://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#ga1ea127ffbbb7e0bfc4fd6fd2eb64263c

func Pow ¶

func Pow(src Mat, power float64, dst *Mat)

Pow raises every array element to a power.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gaf0d056b5bd1dc92500d6f6cf6bac41ef

func PutText ¶

func PutText(img *Mat, text string, org image.Point, fontFace HersheyFont, fontScale float64, c color.RGBA, thickness int)

PutText draws a text string. It renders the specified text string into the img Mat at the location passed in the "org" param, using the desired font face, font scale, color, and line thinkness.

For further details, please see: http://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#ga5126f47f883d730f633d74f07456c576

func PutTextWithParams ¶

func PutTextWithParams(img *Mat, text string, org image.Point, fontFace HersheyFont, fontScale float64, c color.RGBA, thickness int, lineType LineType, bottomLeftOrigin bool)

PutTextWithParams draws a text string. It renders the specified text string into the img Mat at the location passed in the "org" param, using the desired font face, font scale, color, and line thinkness.

For further details, please see: http://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#ga5126f47f883d730f633d74f07456c576

func PyrDown ¶

func PyrDown(src Mat, dst *Mat, ksize image.Point, borderType BorderType)

PyrDown blurs an image and downsamples it.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#gaf9bba239dfca11654cb7f50f889fc2ff

func PyrUp ¶

func PyrUp(src Mat, dst *Mat, ksize image.Point, borderType BorderType)

PyrUp upsamples an image and then blurs it.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#gada75b59bdaaca411ed6fee10085eb784

func RandN ¶

func RandN(mat *Mat, mean, stddev Scalar)

RandN Fills the array with normally distributed random numbers.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gaeff1f61e972d133a04ce3a5f81cf6808

func RandShuffle ¶

func RandShuffle(mat *Mat)

RandShuffle Shuffles the array elements randomly.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga6a789c8a5cb56c6dd62506179808f763

func RandShuffleWithParams ¶

func RandShuffleWithParams(mat *Mat, iterFactor float64, rng RNG)

RandShuffleWithParams Shuffles the array elements randomly.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga6a789c8a5cb56c6dd62506179808f763

func RandU ¶

func RandU(mat *Mat, low, high Scalar)

RandU Generates a single uniformly-distributed random number or an array of random numbers.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga1ba1026dca0807b27057ba6a49d258c0

func Rectangle ¶

func Rectangle(img *Mat, r image.Rectangle, c color.RGBA, thickness int)

Rectangle draws a simple, thick, or filled up-right rectangle. It renders a rectangle with the desired characteristics to the target Mat image.

For further details, please see: http://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#ga346ac30b5c74e9b5137576c9ee9e0e8c

func RectangleWithParams ¶

func RectangleWithParams(img *Mat, r image.Rectangle, c color.RGBA, thickness int, lineType LineType, shift int)

RectangleWithParams draws a simple, thick, or filled up-right rectangle. It renders a rectangle with the desired characteristics to the target Mat image.

For further details, please see: http://docs.opencv.org/master/d6/d6e/group__imgproc__draw.html#ga346ac30b5c74e9b5137576c9ee9e0e8c

func Reduce ¶

func Reduce(src Mat, dst *Mat, dim int, rType ReduceTypes, dType MatType)

Reduce reduces a matrix to a vector.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga4b78072a303f29d9031d56e5638da78e

func Remap ¶

func Remap(src Mat, dst, map1, map2 *Mat, interpolation InterpolationFlags, borderMode BorderType, borderValue color.RGBA)

Remap applies a generic geometrical transformation to an image.

For further details, please see: https://docs.opencv.org/master/da/d54/group__imgproc__transform.html#gab75ef31ce5cdfb5c44b6da5f3b908ea4

func Repeat ¶

func Repeat(src Mat, nY int, nX int, dst *Mat)

Repeat fills the output array with repeated copies of the input array.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga496c3860f3ac44c40b48811333cfda2d

func Resize ¶

func Resize(src Mat, dst *Mat, sz image.Point, fx, fy float64, interp InterpolationFlags)

Resize resizes an image. It resizes the image src down to or up to the specified size, storing the result in dst. Note that src and dst may be the same image. If you wish to scale by factor, an empty sz may be passed and non-zero fx and fy. Likewise, if you wish to scale to an explicit size, a non-empty sz may be passed with zero for both fx and fy.

For further details, please see: https://docs.opencv.org/master/da/d54/group__imgproc__transform.html#ga47a974309e9102f5f08231edc7e7529d

func Rotate ¶

func Rotate(src Mat, dst *Mat, code RotateFlag)

Rotate rotates a 2D array in multiples of 90 degrees

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga4ad01c0978b0ce64baa246811deeac24

func ScaleAdd ¶

func ScaleAdd(src1 Mat, alpha float64, src2 Mat, dst *Mat)

Calculates the sum of a scaled array and another array.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga9e0845db4135f55dcf20227402f00d98

func Scharr ¶

func Scharr(src Mat, dst *Mat, dDepth MatType, dx int, dy int, scale float64,
	delta float64, borderType BorderType)

Scharr calculates the first x- or y- image derivative using Scharr operator.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#gaa13106761eedf14798f37aa2d60404c9

func SepFilter2D ¶

func SepFilter2D(src Mat, dst *Mat, ddepth MatType, kernelX, kernelY Mat, anchor image.Point, delta float64, borderType BorderType)

SepFilter2D applies a separable linear filter to the image.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#ga910e29ff7d7b105057d1625a4bf6318d

func SetIdentity ¶

func SetIdentity(src Mat, scalar float64)

SetIdentity initializes a scaled identity matrix. For further details, please see:

https://docs.opencv.org/master/d2/de8/group__core__array.html#ga388d7575224a4a277ceb98ccaa327c99

func SetRNGSeed ¶

func SetRNGSeed(seed int)

TheRNG Sets state of default random number generator.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga757e657c037410d9e19e819569e7de0f

func Sobel ¶

func Sobel(src Mat, dst *Mat, ddepth MatType, dx, dy, ksize int, scale, delta float64, borderType BorderType)

Sobel calculates the first, second, third, or mixed image derivatives using an extended Sobel operator

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#gacea54f142e81b6758cb6f375ce782c8d

func Solve ¶

func Solve(src1 Mat, src2 Mat, dst *Mat, flags SolveDecompositionFlags) bool

Solve solves one or more linear systems or least-squares problems.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga12b43690dbd31fed96f213eefead2373

func SolveCubic ¶

func SolveCubic(coeffs Mat, roots *Mat) int

SolveCubic finds the real roots of a cubic equation.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga1c3b0b925b085b6e96931ee309e6a1da

func SolvePoly ¶

func SolvePoly(coeffs Mat, roots *Mat, maxIters int) float64

SolvePoly finds the real or complex roots of a polynomial equation.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gac2f5e953016fabcdf793d762f4ec5dce

func Sort ¶

func Sort(src Mat, dst *Mat, flags SortFlags)

Sort sorts each row or each column of a matrix.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga45dd56da289494ce874be2324856898f

func SortIdx ¶

func SortIdx(src Mat, dst *Mat, flags SortFlags)

SortIdx sorts each row or each column of a matrix. Instead of reordering the elements themselves, it stores the indices of sorted elements in the output array

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gadf35157cbf97f3cb85a545380e383506

func SpatialGradient ¶

func SpatialGradient(src Mat, dx, dy *Mat, ksize MatType, borderType BorderType)

SpatialGradient calculates the first order image derivative in both x and y using a Sobel operator.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#ga405d03b20c782b65a4daf54d233239a2

func SqBoxFilter ¶

func SqBoxFilter(src Mat, dst *Mat, depth int, ksize image.Point)

SqBoxFilter calculates the normalized sum of squares of the pixel values overlapping the filter.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#ga045028184a9ef65d7d2579e5c4bff6c0

func Subtract ¶

func Subtract(src1 Mat, src2 Mat, dst *Mat)

Subtract calculates the per-element subtraction of two arrays or an array and a scalar.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gaa0f00d98b4b5edeaeb7b8333b2de353b

func Thinning ¶ added in v0.32.9

func Thinning(src Mat, dst *Mat, typ ThinningType)

Thinning applies a binary blob thinning operation, to achieve a skeletization of the input image.

The function transforms a binary blob image into a skeletized form using the technique of Zhang-Suen.

For further details, please see: https://docs.opencv.org/4.x/df/d2d/group__ximgproc.html#ga37002c6ca80c978edb6ead5d6b39740c

func Threshold ¶

func Threshold(src Mat, dst *Mat, thresh float32, maxvalue float32, typ ThresholdType) (threshold float32)

Threshold applies a fixed-level threshold to each array element.

For further details, please see: https://docs.opencv.org/3.3.0/d7/d1b/group__imgproc__misc.html#gae8a4a146d1ca78c626a53577199e9c57

func Transform ¶

func Transform(src Mat, dst *Mat, tm Mat)

Transform performs the matrix transformation of every array element.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga393164aa54bb9169ce0a8cc44e08ff22

func Transpose ¶

func Transpose(src Mat, dst *Mat)

Transpose transposes a matrix.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga46630ed6c0ea6254a35f447289bd7404

func Undistort ¶

func Undistort(src Mat, dst *Mat, cameraMatrix Mat, distCoeffs Mat, newCameraMatrix Mat)

func UndistortPoints ¶

func UndistortPoints(src Mat, dst *Mat, cameraMatrix, distCoeffs, rectificationTransform, newCameraMatrix Mat)

UndistortPoints transforms points to compensate for lens distortion

For further details, please see: https://docs.opencv.org/master/d9/d0c/group__calib3d.html#ga55c716492470bfe86b0ee9bf3a1f0f7e

func Vconcat ¶

func Vconcat(src1, src2 Mat, dst *Mat)

Vconcat applies vertical concatenation to given matrices.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gaab5ceee39e0580f879df645a872c6bf7

func Version ¶

func Version() string

Version returns the current golang package version

func WarpAffine ¶

func WarpAffine(src Mat, dst *Mat, m Mat, sz image.Point)

WarpAffine applies an affine transformation to an image. For more parameters please check WarpAffineWithParams

For further details, please see: https://docs.opencv.org/master/da/d54/group__imgproc__transform.html#ga0203d9ee5fcd28d40dbc4a1ea4451983

func WarpAffineWithParams ¶

func WarpAffineWithParams(src Mat, dst *Mat, m Mat, sz image.Point, flags InterpolationFlags, borderType BorderType, borderValue color.RGBA)

WarpAffineWithParams applies an affine transformation to an image.

For further details, please see: https://docs.opencv.org/master/da/d54/group__imgproc__transform.html#ga0203d9ee5fcd28d40dbc4a1ea4451983

func WarpPerspective ¶

func WarpPerspective(src Mat, dst *Mat, m Mat, sz image.Point)

WarpPerspective applies a perspective transformation to an image. For more parameters please check WarpPerspectiveWithParams.

For further details, please see: https://docs.opencv.org/master/da/d54/group__imgproc__transform.html#gaf73673a7e8e18ec6963e3774e6a94b87

func WarpPerspectiveWithParams ¶

func WarpPerspectiveWithParams(src Mat, dst *Mat, m Mat, sz image.Point, flags InterpolationFlags, borderType BorderType, borderValue color.RGBA)

WarpPerspectiveWithParams applies a perspective transformation to an image.

For further details, please see: https://docs.opencv.org/master/da/d54/group__imgproc__transform.html#gaf73673a7e8e18ec6963e3774e6a94b87

func Watershed ¶

func Watershed(image Mat, markers *Mat)

Watershed performs a marker-based image segmentation using the watershed algorithm.

For further details, please see: https://docs.opencv.org/master/d7/d1b/group__imgproc__misc.html#ga3267243e4d3f95165d55a618c65ac6e1

Types ¶

type AdaptiveThresholdType ¶

type AdaptiveThresholdType int

AdaptiveThresholdType type of adaptive threshold operation.

const (
	// AdaptiveThresholdMean threshold type
	AdaptiveThresholdMean AdaptiveThresholdType = 0

	// AdaptiveThresholdGaussian threshold type
	AdaptiveThresholdGaussian AdaptiveThresholdType = 1
)

type BorderType ¶

type BorderType int

BorderType type of border.

const (
	// BorderConstant border type
	BorderConstant BorderType = 0

	// BorderReplicate border type
	BorderReplicate BorderType = 1

	// BorderReflect border type
	BorderReflect BorderType = 2

	// BorderWrap border type
	BorderWrap BorderType = 3

	// BorderReflect101 border type
	BorderReflect101 BorderType = 4

	// BorderTransparent border type
	BorderTransparent BorderType = 5

	// BorderDefault border type
	BorderDefault = BorderReflect101

	// BorderIsolated border type
	BorderIsolated BorderType = 16
)

type CLAHE ¶

type CLAHE struct {
	// contains filtered or unexported fields
}

CLAHE is a wrapper around the cv::CLAHE algorithm.

func NewCLAHE ¶

func NewCLAHE() CLAHE

NewCLAHE returns a new CLAHE algorithm

For further details, please see: https://docs.opencv.org/master/d6/db6/classcv_1_1CLAHE.html

func NewCLAHEWithParams ¶

func NewCLAHEWithParams(clipLimit float64, tileGridSize image.Point) CLAHE

NewCLAHEWithParams returns a new CLAHE algorithm

For further details, please see: https://docs.opencv.org/master/d6/db6/classcv_1_1CLAHE.html

func (*CLAHE) Apply ¶

func (c *CLAHE) Apply(src Mat, dst *Mat)

Apply CLAHE.

For further details, please see: https://docs.opencv.org/master/d6/db6/classcv_1_1CLAHE.html#a4e92e0e427de21be8d1fae8dcd862c5e

func (*CLAHE) Close ¶

func (c *CLAHE) Close() error

Close CLAHE.

type CalibCBFlag ¶

type CalibCBFlag int

CalibCBFlag value for chessboard calibration For more details, please see: https://docs.opencv.org/master/d9/d0c/group__calib3d.html#ga93efa9b0aa890de240ca32b11253dd4a

const (
	// Various operation flags that can be zero or a combination of the following values:
	//  Use adaptive thresholding to convert the image to black and white, rather than a fixed threshold level (computed from the average image brightness).
	CalibCBAdaptiveThresh CalibCBFlag = 1 << iota
	//  Normalize the image gamma with equalizeHist before applying fixed or adaptive thresholding.
	CalibCBNormalizeImage
	//  Use additional criteria (like contour area, perimeter, square-like shape) to filter out false quads extracted at the contour retrieval stage.
	CalibCBFilterQuads
	//  Run a fast check on the image that looks for chessboard corners, and shortcut the call if none is found. This can drastically speed up the call in the degenerate condition when no chessboard is observed.
	CalibCBFastCheck
	//  Run an exhaustive search to improve detection rate.
	CalibCBExhaustive
	//  Up sample input image to improve sub-pixel accuracy due to aliasing effects.
	CalibCBAccuracy
	//  The detected pattern is allowed to be larger than patternSize (see description).
	CalibCBLarger
	//  The detected pattern must have a marker (see description). This should be used if an accurate camera calibration is required.
	CalibCBMarker
)

type CalibFlag ¶

type CalibFlag int32

CalibFlag value for calibration

type ColorConversionCode ¶

type ColorConversionCode int

ColorConversionCode is a color conversion code used on Mat.

For further details, please see: http://docs.opencv.org/master/d7/d1b/group__imgproc__misc.html#ga4e0972be5de079fed4e3a10e24ef5ef0

const (
	// ColorBGRToBGRA adds alpha channel to BGR image.
	ColorBGRToBGRA ColorConversionCode = 0

	// ColorBGRAToBGR removes alpha channel from BGR image.
	ColorBGRAToBGR ColorConversionCode = 1

	// ColorBGRToRGBA converts from BGR to RGB with alpha channel.
	ColorBGRToRGBA ColorConversionCode = 2

	// ColorRGBAToBGR converts from RGB with alpha to BGR color space.
	ColorRGBAToBGR ColorConversionCode = 3

	// ColorBGRToRGB converts from BGR to RGB without alpha channel.
	ColorBGRToRGB ColorConversionCode = 4

	// ColorBGRAToRGBA converts from BGR with alpha channel
	// to RGB with alpha channel.
	ColorBGRAToRGBA ColorConversionCode = 5

	// ColorBGRToGray converts from BGR to grayscale.
	ColorBGRToGray ColorConversionCode = 6

	// ColorRGBToGray converts from RGB to grayscale.
	ColorRGBToGray ColorConversionCode = 7

	// ColorGrayToBGR converts from grayscale to BGR.
	ColorGrayToBGR ColorConversionCode = 8

	// ColorGrayToBGRA converts from grayscale to BGR with alpha channel.
	ColorGrayToBGRA ColorConversionCode = 9

	// ColorBGRAToGray converts from BGR with alpha channel to grayscale.
	ColorBGRAToGray ColorConversionCode = 10

	// ColorRGBAToGray converts from RGB with alpha channel to grayscale.
	ColorRGBAToGray ColorConversionCode = 11

	// ColorBGRToBGR565 converts from BGR to BGR565 (16-bit images).
	ColorBGRToBGR565 ColorConversionCode = 12

	// ColorRGBToBGR565 converts from RGB to BGR565 (16-bit images).
	ColorRGBToBGR565 ColorConversionCode = 13

	// ColorBGR565ToBGR converts from BGR565 (16-bit images) to BGR.
	ColorBGR565ToBGR ColorConversionCode = 14

	// ColorBGR565ToRGB converts from BGR565 (16-bit images) to RGB.
	ColorBGR565ToRGB ColorConversionCode = 15

	// ColorBGRAToBGR565 converts from BGRA (with alpha channel)
	// to BGR565 (16-bit images).
	ColorBGRAToBGR565 ColorConversionCode = 16

	// ColorRGBAToBGR565 converts from RGBA (with alpha channel)
	// to BGR565 (16-bit images).
	ColorRGBAToBGR565 ColorConversionCode = 17

	// ColorBGR565ToBGRA converts from BGR565 (16-bit images)
	// to BGRA (with alpha channel).
	ColorBGR565ToBGRA ColorConversionCode = 18

	// ColorBGR565ToRGBA converts from BGR565 (16-bit images)
	// to RGBA (with alpha channel).
	ColorBGR565ToRGBA ColorConversionCode = 19

	// ColorGrayToBGR565 converts from grayscale
	// to BGR565 (16-bit images).
	ColorGrayToBGR565 ColorConversionCode = 20

	// ColorBGR565ToGray converts from BGR565 (16-bit images)
	// to grayscale.
	ColorBGR565ToGray ColorConversionCode = 21

	// ColorBGRToBGR555 converts from BGR to BGR555 (16-bit images).
	ColorBGRToBGR555 ColorConversionCode = 22

	// ColorRGBToBGR555 converts from RGB to BGR555 (16-bit images).
	ColorRGBToBGR555 ColorConversionCode = 23

	// ColorBGR555ToBGR converts from BGR555 (16-bit images) to BGR.
	ColorBGR555ToBGR ColorConversionCode = 24

	// ColorBGR555ToRGB converts from BGR555 (16-bit images) to RGB.
	ColorBGR555ToRGB ColorConversionCode = 25

	// ColorBGRAToBGR555 converts from BGRA (with alpha channel)
	// to BGR555 (16-bit images).
	ColorBGRAToBGR555 ColorConversionCode = 26

	// ColorRGBAToBGR555 converts from RGBA (with alpha channel)
	// to BGR555 (16-bit images).
	ColorRGBAToBGR555 ColorConversionCode = 27

	// ColorBGR555ToBGRA converts from BGR555 (16-bit images)
	// to BGRA (with alpha channel).
	ColorBGR555ToBGRA ColorConversionCode = 28

	// ColorBGR555ToRGBA converts from BGR555 (16-bit images)
	// to RGBA (with alpha channel).
	ColorBGR555ToRGBA ColorConversionCode = 29

	// ColorGrayToBGR555 converts from grayscale to BGR555 (16-bit images).
	ColorGrayToBGR555 ColorConversionCode = 30

	// ColorBGR555ToGRAY converts from BGR555 (16-bit images) to grayscale.
	ColorBGR555ToGRAY ColorConversionCode = 31

	// ColorBGRToXYZ converts from BGR to CIE XYZ.
	ColorBGRToXYZ ColorConversionCode = 32

	// ColorRGBToXYZ converts from RGB to CIE XYZ.
	ColorRGBToXYZ ColorConversionCode = 33

	// ColorXYZToBGR converts from CIE XYZ to BGR.
	ColorXYZToBGR ColorConversionCode = 34

	// ColorXYZToRGB converts from CIE XYZ to RGB.
	ColorXYZToRGB ColorConversionCode = 35

	// ColorBGRToYCrCb converts from BGR to luma-chroma (aka YCC).
	ColorBGRToYCrCb ColorConversionCode = 36

	// ColorRGBToYCrCb converts from RGB to luma-chroma (aka YCC).
	ColorRGBToYCrCb ColorConversionCode = 37

	// ColorYCrCbToBGR converts from luma-chroma (aka YCC) to BGR.
	ColorYCrCbToBGR ColorConversionCode = 38

	// ColorYCrCbToRGB converts from luma-chroma (aka YCC) to RGB.
	ColorYCrCbToRGB ColorConversionCode = 39

	// ColorBGRToHSV converts from BGR to HSV (hue saturation value).
	ColorBGRToHSV ColorConversionCode = 40

	// ColorRGBToHSV converts from RGB to HSV (hue saturation value).
	ColorRGBToHSV ColorConversionCode = 41

	// ColorBGRToLab converts from BGR to CIE Lab.
	ColorBGRToLab ColorConversionCode = 44

	// ColorRGBToLab converts from RGB to CIE Lab.
	ColorRGBToLab ColorConversionCode = 45

	// ColorBGRToLuv converts from BGR to CIE Luv.
	ColorBGRToLuv ColorConversionCode = 50

	// ColorRGBToLuv converts from RGB to CIE Luv.
	ColorRGBToLuv ColorConversionCode = 51

	// ColorBGRToHLS converts from BGR to HLS (hue lightness saturation).
	ColorBGRToHLS ColorConversionCode = 52

	// ColorRGBToHLS converts from RGB to HLS (hue lightness saturation).
	ColorRGBToHLS ColorConversionCode = 53

	// ColorHSVToBGR converts from HSV (hue saturation value) to BGR.
	ColorHSVToBGR ColorConversionCode = 54

	// ColorHSVToRGB converts from HSV (hue saturation value) to RGB.
	ColorHSVToRGB ColorConversionCode = 55

	// ColorLabToBGR converts from CIE Lab to BGR.
	ColorLabToBGR ColorConversionCode = 56

	// ColorLabToRGB converts from CIE Lab to RGB.
	ColorLabToRGB ColorConversionCode = 57

	// ColorLuvToBGR converts from CIE Luv to BGR.
	ColorLuvToBGR ColorConversionCode = 58

	// ColorLuvToRGB converts from CIE Luv to RGB.
	ColorLuvToRGB ColorConversionCode = 59

	// ColorHLSToBGR converts from HLS (hue lightness saturation) to BGR.
	ColorHLSToBGR ColorConversionCode = 60

	// ColorHLSToRGB converts from HLS (hue lightness saturation) to RGB.
	ColorHLSToRGB ColorConversionCode = 61

	// ColorBGRToHSVFull converts from BGR to HSV (hue saturation value) full.
	ColorBGRToHSVFull ColorConversionCode = 66

	// ColorRGBToHSVFull converts from RGB to HSV (hue saturation value) full.
	ColorRGBToHSVFull ColorConversionCode = 67

	// ColorBGRToHLSFull converts from BGR to HLS (hue lightness saturation) full.
	ColorBGRToHLSFull ColorConversionCode = 68

	// ColorRGBToHLSFull converts from RGB to HLS (hue lightness saturation) full.
	ColorRGBToHLSFull ColorConversionCode = 69

	// ColorHSVToBGRFull converts from HSV (hue saturation value) to BGR full.
	ColorHSVToBGRFull ColorConversionCode = 70

	// ColorHSVToRGBFull converts from HSV (hue saturation value) to RGB full.
	ColorHSVToRGBFull ColorConversionCode = 71

	// ColorHLSToBGRFull converts from HLS (hue lightness saturation) to BGR full.
	ColorHLSToBGRFull ColorConversionCode = 72

	// ColorHLSToRGBFull converts from HLS (hue lightness saturation) to RGB full.
	ColorHLSToRGBFull ColorConversionCode = 73

	// ColorLBGRToLab converts from LBGR to CIE Lab.
	ColorLBGRToLab ColorConversionCode = 74

	// ColorLRGBToLab converts from LRGB to CIE Lab.
	ColorLRGBToLab ColorConversionCode = 75

	// ColorLBGRToLuv converts from LBGR to CIE Luv.
	ColorLBGRToLuv ColorConversionCode = 76

	// ColorLRGBToLuv converts from LRGB to CIE Luv.
	ColorLRGBToLuv ColorConversionCode = 77

	// ColorLabToLBGR converts from CIE Lab to LBGR.
	ColorLabToLBGR ColorConversionCode = 78

	// ColorLabToLRGB converts from CIE Lab to LRGB.
	ColorLabToLRGB ColorConversionCode = 79

	// ColorLuvToLBGR converts from CIE Luv to LBGR.
	ColorLuvToLBGR ColorConversionCode = 80

	// ColorLuvToLRGB converts from CIE Luv to LRGB.
	ColorLuvToLRGB ColorConversionCode = 81

	// ColorBGRToYUV converts from BGR to YUV.
	ColorBGRToYUV ColorConversionCode = 82

	// ColorRGBToYUV converts from RGB to YUV.
	ColorRGBToYUV ColorConversionCode = 83

	// ColorYUVToBGR converts from YUV to BGR.
	ColorYUVToBGR ColorConversionCode = 84

	// ColorYUVToRGB converts from YUV to RGB.
	ColorYUVToRGB ColorConversionCode = 85

	// ColorYUVToRGBNV12 converts from YUV 4:2:0 to RGB NV12.
	ColorYUVToRGBNV12 ColorConversionCode = 90

	// ColorYUVToBGRNV12 converts from YUV 4:2:0 to BGR NV12.
	ColorYUVToBGRNV12 ColorConversionCode = 91

	// ColorYUVToRGBNV21 converts from YUV 4:2:0 to RGB NV21.
	ColorYUVToRGBNV21 ColorConversionCode = 92

	// ColorYUVToBGRNV21 converts from YUV 4:2:0 to BGR NV21.
	ColorYUVToBGRNV21 ColorConversionCode = 93

	// ColorYUVToRGBANV12 converts from YUV 4:2:0 to RGBA NV12.
	ColorYUVToRGBANV12 ColorConversionCode = 94

	// ColorYUVToBGRANV12 converts from YUV 4:2:0 to BGRA NV12.
	ColorYUVToBGRANV12 ColorConversionCode = 95

	// ColorYUVToRGBANV21 converts from YUV 4:2:0 to RGBA NV21.
	ColorYUVToRGBANV21 ColorConversionCode = 96

	// ColorYUVToBGRANV21 converts from YUV 4:2:0 to BGRA NV21.
	ColorYUVToBGRANV21 ColorConversionCode = 97

	ColorYUVToRGBYV12 ColorConversionCode = 98
	ColorYUVToBGRYV12 ColorConversionCode = 99
	ColorYUVToRGBIYUV ColorConversionCode = 100
	ColorYUVToBGRIYUV ColorConversionCode = 101

	ColorYUVToRGBAYV12 ColorConversionCode = 102
	ColorYUVToBGRAYV12 ColorConversionCode = 103
	ColorYUVToRGBAIYUV ColorConversionCode = 104
	ColorYUVToBGRAIYUV ColorConversionCode = 105

	ColorYUVToGRAY420 ColorConversionCode = 106

	// YUV 4:2:2 family to RGB
	ColorYUVToRGBUYVY ColorConversionCode = 107
	ColorYUVToBGRUYVY ColorConversionCode = 108

	ColorYUVToRGBAUYVY ColorConversionCode = 111
	ColorYUVToBGRAUYVY ColorConversionCode = 112

	ColorYUVToRGBYUY2 ColorConversionCode = 115
	ColorYUVToBGRYUY2 ColorConversionCode = 116
	ColorYUVToRGBYVYU ColorConversionCode = 117
	ColorYUVToBGRYVYU ColorConversionCode = 118

	ColorYUVToRGBAYUY2 ColorConversionCode = 119
	ColorYUVToBGRAYUY2 ColorConversionCode = 120
	ColorYUVToRGBAYVYU ColorConversionCode = 121
	ColorYUVToBGRAYVYU ColorConversionCode = 122

	ColorYUVToGRAYUYVY ColorConversionCode = 123
	ColorYUVToGRAYYUY2 ColorConversionCode = 124

	// alpha premultiplication
	ColorRGBATomRGBA ColorConversionCode = 125
	ColormRGBAToRGBA ColorConversionCode = 126

	// RGB to YUV 4:2:0 family
	ColorRGBToYUVI420 ColorConversionCode = 127
	ColorBGRToYUVI420 ColorConversionCode = 128

	ColorRGBAToYUVI420 ColorConversionCode = 129
	ColorBGRAToYUVI420 ColorConversionCode = 130
	ColorRGBToYUVYV12  ColorConversionCode = 131
	ColorBGRToYUVYV12  ColorConversionCode = 132
	ColorRGBAToYUVYV12 ColorConversionCode = 133
	ColorBGRAToYUVYV12 ColorConversionCode = 134

	// Demosaicing
	ColorBayerBGToBGR ColorConversionCode = 46
	ColorBayerGBToBGR ColorConversionCode = 47
	ColorBayerRGToBGR ColorConversionCode = 48
	ColorBayerGRToBGR ColorConversionCode = 49

	ColorBayerBGToGRAY ColorConversionCode = 86
	ColorBayerGBToGRAY ColorConversionCode = 87
	ColorBayerRGToGRAY ColorConversionCode = 88
	ColorBayerGRToGRAY ColorConversionCode = 89

	// Demosaicing using Variable Number of Gradients
	ColorBayerBGToBGRVNG ColorConversionCode = 62
	ColorBayerGBToBGRVNG ColorConversionCode = 63
	ColorBayerRGToBGRVNG ColorConversionCode = 64
	ColorBayerGRToBGRVNG ColorConversionCode = 65

	// Edge-Aware Demosaicing
	ColorBayerBGToBGREA ColorConversionCode = 135
	ColorBayerGBToBGREA ColorConversionCode = 136
	ColorBayerRGToBGREA ColorConversionCode = 137
	ColorBayerGRToBGREA ColorConversionCode = 138

	// Demosaicing with alpha channel
	ColorBayerBGToBGRA ColorConversionCode = 139
	ColorBayerGBToBGRA ColorConversionCode = 140
	ColorBayerRGToBGRA ColorConversionCode = 141
	ColorBayerGRToBGRA ColorConversionCode = 142

	ColorCOLORCVTMAX ColorConversionCode = 143
)

func (ColorConversionCode) String ¶

func (c ColorConversionCode) String() string

type ColormapTypes ¶

type ColormapTypes int

ColormapTypes are the 12 GNU Octave/MATLAB equivalent colormaps.

For further details, please see: https://docs.opencv.org/master/d3/d50/group__imgproc__colormap.html

const (
	ColormapAutumn  ColormapTypes = 0
	ColormapBone    ColormapTypes = 1
	ColormapJet     ColormapTypes = 2
	ColormapWinter  ColormapTypes = 3
	ColormapRainbow ColormapTypes = 4
	ColormapOcean   ColormapTypes = 5
	ColormapSummer  ColormapTypes = 6
	ColormapSpring  ColormapTypes = 7
	ColormapCool    ColormapTypes = 8
	ColormapHsv     ColormapTypes = 9
	ColormapPink    ColormapTypes = 10
	ColormapHot     ColormapTypes = 11
	ColormapParula  ColormapTypes = 12
)

List of the available color maps

For further details, please see: https://docs.opencv.org/master/d3/d50/group__imgproc__colormap.html#ga9a805d8262bcbe273f16be9ea2055a65

type CompareType ¶

type CompareType int

CompareType is used for Compare operations to indicate which kind of comparison to use.

const (
	// CompareEQ src1 is equal to src2.
	CompareEQ CompareType = 0

	// CompareGT src1 is greater than src2.
	CompareGT CompareType = 1

	// CompareGE src1 is greater than or equal to src2.
	CompareGE CompareType = 2

	// CompareLT src1 is less than src2.
	CompareLT CompareType = 3

	// CompareLE src1 is less than or equal to src2.
	CompareLE CompareType = 4

	// CompareNE src1 is unequal to src2.
	CompareNE CompareType = 5
)

type ConnectedComponentsAlgorithmType ¶

type ConnectedComponentsAlgorithmType int

ConnectedComponentsAlgorithmType specifies the type for ConnectedComponents

const (
	// SAUF algorithm for 8-way connectivity, SAUF algorithm for 4-way connectivity.
	CCL_WU ConnectedComponentsAlgorithmType = 0

	// BBDT algorithm for 8-way connectivity, SAUF algorithm for 4-way connectivity.
	CCL_DEFAULT ConnectedComponentsAlgorithmType = 1

	// BBDT algorithm for 8-way connectivity, SAUF algorithm for 4-way connectivity
	CCL_GRANA ConnectedComponentsAlgorithmType = 2
)

type ConnectedComponentsTypes ¶

type ConnectedComponentsTypes int

ConnectedComponentsTypes are the connected components algorithm output formats

const (
	//The leftmost (x) coordinate which is the inclusive start of the bounding box in the horizontal direction.
	CC_STAT_LEFT ConnectedComponentsTypes = 0

	//The topmost (y) coordinate which is the inclusive start of the bounding box in the vertical direction.
	CC_STAT_TOP ConnectedComponentsTypes = 1

	// The horizontal size of the bounding box.
	CC_STAT_WIDTH ConnectedComponentsTypes = 2

	// The vertical size of the bounding box.
	CC_STAT_HEIGHT ConnectedComponentsTypes = 3

	// The total area (in pixels) of the connected component.
	CC_STAT_AREA ConnectedComponentsTypes = 4

	CC_STAT_MAX ConnectedComponentsTypes = 5
)

type ContourApproximationMode ¶

type ContourApproximationMode int

ContourApproximationMode is the mode of the contour approximation algorithm.

const (
	// ChainApproxNone stores absolutely all the contour points. That is,
	// any 2 subsequent points (x1,y1) and (x2,y2) of the contour will be
	// either horizontal, vertical or diagonal neighbors, that is,
	// max(abs(x1-x2),abs(y2-y1))==1.
	ChainApproxNone ContourApproximationMode = 1

	// ChainApproxSimple compresses horizontal, vertical, and diagonal segments
	// and leaves only their end points.
	// For example, an up-right rectangular contour is encoded with 4 points.
	ChainApproxSimple ContourApproximationMode = 2

	// ChainApproxTC89L1 applies one of the flavors of the Teh-Chin chain
	// approximation algorithms.
	ChainApproxTC89L1 ContourApproximationMode = 3

	// ChainApproxTC89KCOS applies one of the flavors of the Teh-Chin chain
	// approximation algorithms.
	ChainApproxTC89KCOS ContourApproximationMode = 4
)

type CovarFlags ¶

type CovarFlags int

CovarFlags are the covariation flags used by functions such as BorderInterpolate.

For further details, please see: https://docs.opencv.org/master/d0/de1/group__core.html#ga719ebd4a73f30f4fab258ab7616d0f0f

const (
	// CovarScrambled indicates to scramble the results.
	CovarScrambled CovarFlags = 0

	// CovarNormal indicates to use normal covariation.
	CovarNormal CovarFlags = 1

	// CovarUseAvg indicates to use average covariation.
	CovarUseAvg CovarFlags = 2

	// CovarScale indicates to use scaled covariation.
	CovarScale CovarFlags = 4

	// CovarRows indicates to use covariation on rows.
	CovarRows CovarFlags = 8

	// CovarCols indicates to use covariation on columns.
	CovarCols CovarFlags = 16
)

type DMatch ¶

type DMatch struct {
	QueryIdx int
	TrainIdx int
	ImgIdx   int
	Distance float64
}

DMatch is data structure for matching keypoint descriptors.

For further details, please see: https://docs.opencv.org/master/d4/de0/classcv_1_1DMatch.html#a546ddb9a87898f06e510e015a6de596e

type DftFlags ¶

type DftFlags int

DftFlags represents a DFT or DCT flag.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gaf4dde112b483b38175621befedda1f1c

const (
	// DftForward performs forward 1D or 2D dft or dct.
	DftForward DftFlags = 0

	// DftInverse performs an inverse 1D or 2D transform.
	DftInverse DftFlags = 1

	// DftScale scales the result: divide it by the number of array elements. Normally, it is combined with DFT_INVERSE.
	DftScale DftFlags = 2

	// DftRows performs a forward or inverse transform of every individual row of the input matrix.
	DftRows DftFlags = 4

	// DftComplexOutput performs a forward transformation of 1D or 2D real array; the result, though being a complex array, has complex-conjugate symmetry
	DftComplexOutput DftFlags = 16

	// DftRealOutput performs an inverse transformation of a 1D or 2D complex array; the result is normally a complex array of the same size,
	// however, if the input array has conjugate-complex symmetry (for example, it is a result of forward transformation with DFT_COMPLEX_OUTPUT flag),
	// the output is a real array.
	DftRealOutput DftFlags = 32

	// DftComplexInput specifies that input is complex input. If this flag is set, the input must have 2 channels.
	DftComplexInput DftFlags = 64

	// DctInverse performs an inverse 1D or 2D dct transform.
	DctInverse = DftInverse

	// DctRows performs a forward or inverse dct transform of every individual row of the input matrix.
	DctRows = DftRows
)

type DistanceTransformLabelTypes ¶

type DistanceTransformLabelTypes int

DistanceTransformLabelTypes are the types of the DistanceTransform algorithm flag

const (
	// DistanceLabelCComp assigns the same label to each connected component of zeros in the source image
	// (as well as all the non-zero pixels closest to the connected component).
	DistanceLabelCComp DistanceTransformLabelTypes = 0

	// DistanceLabelPixel assigns its own label to each zero pixel (and all the non-zero pixels closest to it).
	DistanceLabelPixel
)

type DistanceTransformMasks ¶

type DistanceTransformMasks int

DistanceTransformMasks are the marsk sizes for distance transform

const (
	// DistanceMask3 is a mask of size 3
	DistanceMask3 DistanceTransformMasks = 0

	// DistanceMask5 is a mask of size 3
	DistanceMask5

	// DistanceMaskPrecise is not currently supported
	DistanceMaskPrecise
)

type DistanceTypes ¶

type DistanceTypes int

DistanceTypes types for Distance Transform and M-estimatorss

For further details, please see: https://docs.opencv.org/master/d7/d1b/group__imgproc__misc.html#gaa2bfbebbc5c320526897996aafa1d8eb

const (
	DistUser   DistanceTypes = 0
	DistL1     DistanceTypes = 1
	DistL2     DistanceTypes = 2
	DistC      DistanceTypes = 3
	DistL12    DistanceTypes = 4
	DistFair   DistanceTypes = 5
	DistWelsch DistanceTypes = 6
	DistHuber  DistanceTypes = 7
)

type FileExt ¶

type FileExt string

FileExt represents a file extension.

const (
	// PNGFileExt is the file extension for PNG.
	PNGFileExt FileExt = ".png"
	// JPEGFileExt is the file extension for JPEG.
	JPEGFileExt FileExt = ".jpg"
	// GIFFileExt is the file extension for GIF.
	GIFFileExt FileExt = ".gif"
)

type GrabCutMode ¶

type GrabCutMode int

GrabCutMode is the flag for GrabCut algorithm.

const (
	// GCInitWithRect makes the function initialize the state and the mask using the provided rectangle.
	// After that it runs the itercount iterations of the algorithm.
	GCInitWithRect GrabCutMode = 0
	// GCInitWithMask makes the function initialize the state using the provided mask.
	// GCInitWithMask and GCInitWithRect can be combined.
	// Then all the pixels outside of the ROI are automatically initialized with GC_BGD.
	GCInitWithMask GrabCutMode = 1
	// GCEval means that the algorithm should just resume.
	GCEval GrabCutMode = 2
	// GCEvalFreezeModel means that the algorithm should just run a single iteration of the GrabCut algorithm
	// with the fixed model
	GCEvalFreezeModel GrabCutMode = 3
)

type HersheyFont ¶

type HersheyFont int

HersheyFont are the font libraries included in OpenCV. Only a subset of the available Hershey fonts are supported by OpenCV.

For more information, see: http://sources.isc.org/utils/misc/hershey-font.txt

const (
	// FontHersheySimplex is normal size sans-serif font.
	FontHersheySimplex HersheyFont = 0
	// FontHersheyPlain issmall size sans-serif font.
	FontHersheyPlain HersheyFont = 1
	// FontHersheyDuplex normal size sans-serif font
	// (more complex than FontHersheySIMPLEX).
	FontHersheyDuplex HersheyFont = 2
	// FontHersheyComplex i a normal size serif font.
	FontHersheyComplex HersheyFont = 3
	// FontHersheyTriplex is a normal size serif font
	// (more complex than FontHersheyCOMPLEX).
	FontHersheyTriplex HersheyFont = 4
	// FontHersheyComplexSmall is a smaller version of FontHersheyCOMPLEX.
	FontHersheyComplexSmall HersheyFont = 5
	// FontHersheyScriptSimplex is a hand-writing style font.
	FontHersheyScriptSimplex HersheyFont = 6
	// FontHersheyScriptComplex is a more complex variant of FontHersheyScriptSimplex.
	FontHersheyScriptComplex HersheyFont = 7
	// FontItalic is the flag for italic font.
	FontItalic HersheyFont = 16
)

type HistCompMethod ¶

type HistCompMethod int

HistCompMethod is the method for Histogram comparison For more information, see https://docs.opencv.org/master/d6/dc7/group__imgproc__hist.html#ga994f53817d621e2e4228fc646342d386

const (
	// HistCmpCorrel calculates the Correlation
	HistCmpCorrel HistCompMethod = 0

	// HistCmpChiSqr calculates the Chi-Square
	HistCmpChiSqr HistCompMethod = 1

	// HistCmpIntersect calculates the Intersection
	HistCmpIntersect HistCompMethod = 2

	// HistCmpBhattacharya applies the HistCmpBhattacharya by calculating the Bhattacharya distance.
	HistCmpBhattacharya HistCompMethod = 3

	// HistCmpHellinger applies the HistCmpBhattacharya comparison. It is a synonym to HistCmpBhattacharya.
	HistCmpHellinger = HistCmpBhattacharya

	// HistCmpChiSqrAlt applies the Alternative Chi-Square (regularly used for texture comparsion).
	HistCmpChiSqrAlt HistCompMethod = 4

	// HistCmpKlDiv applies the Kullback-Liebler divergence comparison.
	HistCmpKlDiv HistCompMethod = 5
)

type HomographyMethod ¶

type HomographyMethod int

const (
	HomograpyMethodAllPoints HomographyMethod = 0
	HomograpyMethodLMEDS     HomographyMethod = 4
	HomograpyMethodRANSAC    HomographyMethod = 8
)

type HoughMode ¶

type HoughMode int

HoughMode is the type for Hough transform variants.

const (
	// HoughStandard is the classical or standard Hough transform.
	HoughStandard HoughMode = 0
	// HoughProbabilistic is the probabilistic Hough transform (more efficient
	// in case if the picture contains a few long linear segments).
	HoughProbabilistic HoughMode = 1
	// HoughMultiScale is the multi-scale variant of the classical Hough
	// transform.
	HoughMultiScale HoughMode = 2
	// HoughGradient is basically 21HT, described in: HK Yuen, John Princen,
	// John Illingworth, and Josef Kittler. Comparative study of hough
	// transform methods for circle finding. Image and Vision Computing,
	// 8(1):71–77, 1990.
	HoughGradient HoughMode = 3
)

type IMReadFlag ¶

type IMReadFlag int

IMReadFlag is one of the valid flags to use for the IMRead function.

const (
	// IMReadUnchanged return the loaded image as is (with alpha channel,
	// otherwise it gets cropped).
	IMReadUnchanged IMReadFlag = -1

	// IMReadGrayScale always convert image to the single channel
	// grayscale image.
	IMReadGrayScale IMReadFlag = 0

	// IMReadColor always converts image to the 3 channel BGR color image.
	IMReadColor IMReadFlag = 1

	// IMReadAnyDepth returns 16-bit/32-bit image when the input has the corresponding
	// depth, otherwise convert it to 8-bit.
	IMReadAnyDepth IMReadFlag = 2

	// IMReadAnyColor the image is read in any possible color format.
	IMReadAnyColor IMReadFlag = 4

	// IMReadLoadGDAL uses the gdal driver for loading the image.
	IMReadLoadGDAL IMReadFlag = 8

	// IMReadReducedGrayscale2 always converts image to the single channel grayscale image
	// and the image size reduced 1/2.
	IMReadReducedGrayscale2 IMReadFlag = 16

	// IMReadReducedColor2 always converts image to the 3 channel BGR color image and the
	// image size reduced 1/2.
	IMReadReducedColor2 IMReadFlag = 17

	// IMReadReducedGrayscale4 always converts image to the single channel grayscale image and
	// the image size reduced 1/4.
	IMReadReducedGrayscale4 IMReadFlag = 32

	// IMReadReducedColor4 always converts image to the 3 channel BGR color image and
	// the image size reduced 1/4.
	IMReadReducedColor4 IMReadFlag = 33

	// IMReadReducedGrayscale8 always convert image to the single channel grayscale image and
	// the image size reduced 1/8.
	IMReadReducedGrayscale8 IMReadFlag = 64

	// IMReadReducedColor8 always convert image to the 3 channel BGR color image and the
	// image size reduced 1/8.
	IMReadReducedColor8 IMReadFlag = 65

	// IMReadIgnoreOrientation do not rotate the image according to EXIF's orientation flag.
	IMReadIgnoreOrientation IMReadFlag = 128
)

type InterpolationFlags ¶

type InterpolationFlags int

InterpolationFlags are bit flags that control the interpolation algorithm that is used.

const (
	// InterpolationNearestNeighbor is nearest neighbor. (fast but low quality)
	InterpolationNearestNeighbor InterpolationFlags = 0

	// InterpolationLinear is bilinear interpolation.
	InterpolationLinear InterpolationFlags = 1

	// InterpolationCubic is bicube interpolation.
	InterpolationCubic InterpolationFlags = 2

	// InterpolationArea uses pixel area relation. It is preferred for image
	// decimation as it gives moire-free results.
	InterpolationArea InterpolationFlags = 3

	// InterpolationLanczos4 is Lanczos interpolation over 8x8 neighborhood.
	InterpolationLanczos4 InterpolationFlags = 4

	// InterpolationDefault is an alias for InterpolationLinear.
	InterpolationDefault = InterpolationLinear

	// InterpolationMax indicates use maximum interpolation.
	InterpolationMax InterpolationFlags = 7

	// WarpFillOutliers fills all of the destination image pixels. If some of them correspond to outliers in the source image, they are set to zero.
	WarpFillOutliers = 8

	// WarpInverseMap, inverse transformation.
	WarpInverseMap = 16
)

type KMeansFlags ¶

type KMeansFlags int

KMeansFlags for kmeans center selection

For further details, please see: https://docs.opencv.org/master/d0/de1/group__core.html#ga276000efe55ee2756e0c471c7b270949

const (
	// KMeansRandomCenters selects random initial centers in each attempt.
	KMeansRandomCenters KMeansFlags = 0
	// KMeansPPCenters uses kmeans++ center initialization by Arthur and Vassilvitskii [Arthur2007].
	KMeansPPCenters KMeansFlags = 1
	// KMeansUseInitialLabels uses the user-supplied lables during the first (and possibly the only) attempt
	// instead of computing them from the initial centers. For the second and further attempts, use the random or semi-random     // centers. Use one of KMEANS_*_CENTERS flag to specify the exact method.
	KMeansUseInitialLabels KMeansFlags = 2
)

type KeyPoint ¶

type KeyPoint struct {
	X, Y                  float64
	Size, Angle, Response float64
	Octave, ClassID       int
}

KeyPoint is data structure for salient point detectors.

For further details, please see: https://docs.opencv.org/master/d2/d29/classcv_1_1KeyPoint.html

type LineType ¶

type LineType int

LineType are the line libraries included in OpenCV.

For more information, see: https://vovkos.github.io/doxyrest-showcase/opencv/sphinx_rtd_theme/enum_cv_LineTypes.html

const (
	// Filled line
	Filled LineType = -1
	// Line4 4-connected line
	Line4 LineType = 4
	// Line8 8-connected line
	Line8 LineType = 8
	// LineAA antialiased line
	LineAA LineType = 16
)

type Mat ¶

type Mat struct {
	// contains filtered or unexported fields
}

Mat represents an n-dimensional dense numerical single-channel or multi-channel array. It can be used to store real or complex-valued vectors and matrices, grayscale or color images, voxel volumes, vector fields, point clouds, tensors, and histograms.

For further details, please see: http://docs.opencv.org/master/d3/d63/classcv_1_1Mat.html

func EstimateAffine2D ¶

func EstimateAffine2D(from, to Point2fVector) Mat

EstimateAffine2D Computes an optimal affine transformation between two 2D point sets.

For further details, please see: https://docs.opencv.org/4.0.0/d9/d0c/group__calib3d.html#ga27865b1d26bac9ce91efaee83e94d4dd

func EstimateAffine2DWithParams ¶

func EstimateAffine2DWithParams(from Point2fVector, to Point2fVector, inliers Mat, method int, ransacReprojThreshold float64, maxIters uint, confidence float64, refineIters uint) Mat

EstimateAffine2DWithParams Computes an optimal affine transformation between two 2D point sets with additional optional parameters.

For further details, please see: https://docs.opencv.org/4.0.0/d9/d0c/group__calib3d.html#ga27865b1d26bac9ce91efaee83e94d4dd

func EstimateAffinePartial2D ¶

func EstimateAffinePartial2D(from, to Point2fVector) Mat

EstimateAffinePartial2D computes an optimal limited affine transformation with 4 degrees of freedom between two 2D point sets.

For further details, please see: https://docs.opencv.org/master/d9/d0c/group__calib3d.html#gad767faff73e9cbd8b9d92b955b50062d

func Eye ¶

func Eye(rows int, cols int, mt MatType) Mat

Returns an identity matrix of the specified size and type.

The method returns a Matlab-style identity matrix initializer, similarly to Mat::zeros. Similarly to Mat::ones. For further details, please see: https://docs.opencv.org/master/d3/d63/classcv_1_1Mat.html#a2cf9b9acde7a9852542bbc20ef851ed2

func FindHomography ¶

func FindHomography(srcPoints Mat, dstPoints *Mat, method HomographyMethod, ransacReprojThreshold float64, mask *Mat, maxIters int, confidence float64) Mat

FindHomography finds an optimal homography matrix using 4 or more point pairs (as opposed to GetPerspectiveTransform, which uses exactly 4)

For further details, please see: https://docs.opencv.org/master/d9/d0c/group__calib3d.html#ga4abc2ece9fab9398f2e560d53c8c9780

func GetAffineTransform ¶

func GetAffineTransform(src, dst PointVector) Mat

GetAffineTransform returns a 2x3 affine transformation matrix for the corresponding 3 point pairs as image.Point.

For further details, please see: https://docs.opencv.org/master/da/d54/group__imgproc__transform.html#ga8f6d378f9f8eebb5cb55cd3ae295a999

func GetAffineTransform2f ¶

func GetAffineTransform2f(src, dst Point2fVector) Mat

GetAffineTransform2f returns a 2x3 affine transformation matrix for the corresponding 3 point pairs as gocv.Point2f.

For further details, please see: https://docs.opencv.org/master/da/d54/group__imgproc__transform.html#ga8f6d378f9f8eebb5cb55cd3ae295a999

func GetGaussianKernel ¶

func GetGaussianKernel(ksize int, sigma float64) Mat

GetGaussianKernel returns Gaussian filter coefficients.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#gac05a120c1ae92a6060dd0db190a61afa

func GetGaussianKernelWithParams ¶

func GetGaussianKernelWithParams(ksize int, sigma float64, ktype MatType) Mat

GetGaussianKernelWithParams returns Gaussian filter coefficients.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#gac05a120c1ae92a6060dd0db190a61afa

func GetOptimalNewCameraMatrixWithParams ¶

func GetOptimalNewCameraMatrixWithParams(cameraMatrix Mat, distCoeffs Mat, imageSize image.Point, alpha float64, newImgSize image.Point, centerPrincipalPoint bool) (Mat, image.Rectangle)

GetOptimalNewCameraMatrixWithParams computes and returns the optimal new camera matrix based on the free scaling parameter.

For further details, please see: https://docs.opencv.org/master/d9/d0c/group__calib3d.html#ga7a6c4e032c97f03ba747966e6ad862b1

func GetPerspectiveTransform ¶

func GetPerspectiveTransform(src, dst PointVector) Mat

GetPerspectiveTransform returns 3x3 perspective transformation for the corresponding 4 point pairs as image.Point.

For further details, please see: https://docs.opencv.org/master/da/d54/group__imgproc__transform.html#ga8c1ae0e3589a9d77fffc962c49b22043

func GetPerspectiveTransform2f ¶

func GetPerspectiveTransform2f(src, dst Point2fVector) Mat

GetPerspectiveTransform2f returns 3x3 perspective transformation for the corresponding 4 point pairs as gocv.Point2f.

For further details, please see: https://docs.opencv.org/master/da/d54/group__imgproc__transform.html#ga8c1ae0e3589a9d77fffc962c49b22043

func GetRotationMatrix2D ¶

func GetRotationMatrix2D(center image.Point, angle, scale float64) Mat

GetRotationMatrix2D calculates an affine matrix of 2D rotation.

For further details, please see: https://docs.opencv.org/master/da/d54/group__imgproc__transform.html#gafbbc470ce83812914a70abfb604f4326

func GetStructuringElement ¶

func GetStructuringElement(shape MorphShape, ksize image.Point) Mat

GetStructuringElement returns a structuring element of the specified size and shape for morphological operations.

For further details, please see: https://docs.opencv.org/master/d4/d86/group__imgproc__filter.html#gac342a1bb6eabf6f55c803b09268e36dc

func IMDecode ¶

func IMDecode(buf []byte, flags IMReadFlag) (Mat, error)

IMDecode reads an image from a buffer in memory. The function IMDecode reads an image from the specified buffer in memory. If the buffer is too short or contains invalid data, the function returns an empty matrix.

For further details, please see: https://docs.opencv.org/master/d4/da8/group__imgcodecs.html#ga26a67788faa58ade337f8d28ba0eb19e

func IMRead ¶

func IMRead(name string, flags IMReadFlag) Mat

IMRead reads an image from a file into a Mat. The flags param is one of the IMReadFlag flags. If the image cannot be read (because of missing file, improper permissions, unsupported or invalid format), the function returns an empty Mat.

For further details, please see: http://docs.opencv.org/master/d4/da8/group__imgcodecs.html#ga288b8b3da0892bd651fce07b3bbd3a56

func ImageGrayToMatGray ¶

func ImageGrayToMatGray(img *image.Gray) (Mat, error)

ImageGrayToMatGray converts image.Gray to gocv.Mat, which represents grayscale image 8bit. Type of Mat is gocv.MatTypeCV8UC1.

func ImageToMatRGB ¶

func ImageToMatRGB(img image.Image) (Mat, error)

ImageToMatRGB converts image.Image to gocv.Mat, which represents RGB image having 8bit for each component. Type of Mat is gocv.MatTypeCV8UC3.

func ImageToMatRGBA ¶

func ImageToMatRGBA(img image.Image) (Mat, error)

ImageToMatRGBA converts image.Image to gocv.Mat, which represents RGBA image having 8bit for each component. Type of Mat is gocv.MatTypeCV8UC4.

func NewMat ¶

func NewMat() Mat

NewMat returns a new empty Mat.

func NewMatFromBytes ¶

func NewMatFromBytes(rows int, cols int, mt MatType, data []byte) (Mat, error)

NewMatFromBytes returns a new Mat with a specific size and type, initialized from a []byte.

func NewMatFromScalar ¶

func NewMatFromScalar(s Scalar, mt MatType) Mat

NewMatFromScalar returns a new Mat for a specific Scalar value

func NewMatWithSize ¶

func NewMatWithSize(rows int, cols int, mt MatType) Mat

NewMatWithSize returns a new Mat with a specific size and type.

func NewMatWithSizeFromScalar ¶

func NewMatWithSizeFromScalar(s Scalar, rows int, cols int, mt MatType) Mat

NewMatWithSizeFromScalar returns a new Mat for a specific Scala value with a specific size and type This simplifies creation of specific color filters or creating Mats of specific colors and sizes

func NewMatWithSizes ¶

func NewMatWithSizes(sizes []int, mt MatType) Mat

NewMatWithSizes returns a new multidimensional Mat with a specific size and type.

func NewMatWithSizesFromBytes ¶

func NewMatWithSizesFromBytes(sizes []int, mt MatType, data []byte) (Mat, error)

NewMatWithSizesWithScalar returns a new multidimensional Mat with a specific size, type and preexisting data.

func NewMatWithSizesWithScalar ¶

func NewMatWithSizesWithScalar(sizes []int, mt MatType, s Scalar) Mat

NewMatWithSizesWithScalar returns a new multidimensional Mat with a specific size, type and scalar value.

func Ones ¶

func Ones(rows int, cols int, mt MatType) Mat

Returns an array of all 1's of the specified size and type.

The method returns a Matlab-style 1's array initializer For further details, please see: https://docs.opencv.org/master/d3/d63/classcv_1_1Mat.html#a69ae0402d116fc9c71908d8508dc2f09

func Split ¶

func Split(src Mat) (mv []Mat)

Split creates an array of single channel images from a multi-channel image Created images should be closed manualy to avoid memory leaks.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga0547c7fed86152d7e9d0096029c8518a

func Zeros ¶

func Zeros(rows int, cols int, mt MatType) Mat

Returns a zero array of the specified size and type.

The method returns a Matlab-style zero array initializer. For further details, please see: https://docs.opencv.org/master/d3/d63/classcv_1_1Mat.html#a0b57b6a326c8876d944d188a46e0f556

func (*Mat) AddFloat ¶

func (m *Mat) AddFloat(val float32)

AddFloat adds a float value to each element in the Mat. Performs a mat += val operation.

func (*Mat) AddUChar ¶

func (m *Mat) AddUChar(val uint8)

AddUChar adds a uchar value to each element in the Mat. Performs a mat += val operation.

func (*Mat) Channels ¶

func (m *Mat) Channels() int

Channels returns the number of channels for this Mat.

func (*Mat) Clone ¶

func (m *Mat) Clone() Mat

Clone returns a cloned full copy of the Mat.

func (*Mat) Close ¶

func (m *Mat) Close() error

Close the Mat object.

func (*Mat) ColRange ¶

func (m *Mat) ColRange(start, end int) Mat

ColRange creates a matrix header for the specified column span.

For further details, please see: https://docs.opencv.org/master/d3/d63/classcv_1_1Mat.html#aadc8f9210fe4dec50513746c246fa8d9

func (*Mat) Cols ¶

func (m *Mat) Cols() int

Cols returns the number of columns for this Mat.

func (*Mat) ConvertFp16 ¶

func (m *Mat) ConvertFp16() Mat

ConvertFp16 converts a Mat to half-precision floating point.

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga9c25d9ef44a2a48ecc3774b30cb80082

func (*Mat) ConvertTo ¶

func (m *Mat) ConvertTo(dst *Mat, mt MatType)

ConvertTo converts Mat into destination Mat.

For further details, please see: https://docs.opencv.org/master/d3/d63/classcv_1_1Mat.html#adf88c60c5b4980e05bb556080916978b

func (*Mat) ConvertToWithParams ¶

func (m *Mat) ConvertToWithParams(dst *Mat, mt MatType, alpha, beta float32)

func (*Mat) CopyTo ¶

func (m *Mat) CopyTo(dst *Mat)

CopyTo copies Mat into destination Mat.

For further details, please see: https://docs.opencv.org/master/d3/d63/classcv_1_1Mat.html#a33fd5d125b4c302b0c9aa86980791a77

func (*Mat) CopyToWithMask ¶

func (m *Mat) CopyToWithMask(dst *Mat, mask Mat)

CopyToWithMask copies Mat into destination Mat after applying the mask Mat.

For further details, please see: https://docs.opencv.org/master/d3/d63/classcv_1_1Mat.html#a626fe5f96d02525e2604d2ad46dd574f