transform

package

v0.0.0-...-be438f9 Latest Latest Go to latest Published: Jul 24, 2023 License: MIT Imports: 6 Imported by: 0

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Repository

github.com/matthewapeters/lilly

Links

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Documentation ¶

Index ¶

Variables
func ApplySigmoid(img *image.Gray, cfg *EdgeDetectConfig) (newImg *image.RGBA)
func DetectEdge(img *image.Gray) *image.Gray
func GetHist(img *image.Gray, cfg *EdgeDetectConfig) (newImg *image.RGBA)
func ImageToGray(img *image.RGBA) (newImage *image.Gray)
type EdgeDetectConfig
- func DefaultEdgeDetectConfig() *EdgeDetectConfig
type IJ
type MyKernel
type Stats
- func GrayScaleStats(img *image.Gray) (stats *Stats)
- func NewStats() (s *Stats)
- func (s *Stats) Bump(y uint8)
- func (s *Stats) Histogram(cfg *EdgeDetectConfig) (img *image.RGBA)

Constants ¶

This section is empty.

Variables ¶

View Source

var ThreeByThree = []IJ{
	{0, 0}, {0, 1}, {0, 2},
	{1, 0}, {1, 1}, {1, 2},
	{2, 0}, {2, 1}, {2, 2},
}

ThreeByThree static iteration of nested 3x3

Functions ¶

func ApplySigmoid ¶

func ApplySigmoid(img *image.Gray, cfg *EdgeDetectConfig) (newImg *image.RGBA)

func DetectEdge ¶

func DetectEdge(img *image.Gray) *image.Gray

DetectEdge for edge detection

func GetHist ¶

func GetHist(img *image.Gray, cfg *EdgeDetectConfig) (newImg *image.RGBA)

func ImageToGray ¶

func ImageToGray(img *image.RGBA) (newImage *image.Gray)

ImageToGray converts an RGBA image to Gray

Types ¶

type EdgeDetectConfig ¶

type EdgeDetectConfig struct {
	// Reg, Green, Blue factors for adjusting luminance
	RedFactor   float64
	GreenFactor float64
	BlueFactor  float64

	F         float64
	S         float64
	Tx        bool // set background to transparent?
	ShowAngle bool
}

func DefaultEdgeDetectConfig ¶

func DefaultEdgeDetectConfig() *EdgeDetectConfig

type IJ ¶

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

IJ because it is i,j

type MyKernel ¶

type MyKernel [3][3]float64

MyKernel -- small matrix for convolving with the image to detect edges

var Gx MyKernel = [3][3]float64{
	{-1.0, 0.0, 1.0},
	{-2.0, 0.0, 2.0},
	{-1.0, 0.0, 1.0}}

Gx Horizontal Kernel var Gx Kernel = [3][3]int{{-1, 0, 1}, {-2, 0, 2}, {-1, 0, 1}}

var Gy MyKernel = [3][3]float64{
	{+1.0, +2.0, +1.0},
	{+0.0, +0.0, +0.0},
	{-1.0, -2.0, -1.0}}

Gy Vertical Kernel var Gy Kernel = [3][3]int{{1, 2, 1}, {0, 0, 0}, {-1, -2, -1}}

type Stats ¶

type Stats struct {
	MaxCount      uint8
	HighestLumins uint8
	// contains filtered or unexported fields
}

func GrayScaleStats ¶

func GrayScaleStats(img *image.Gray) (stats *Stats)

func NewStats ¶

func NewStats() (s *Stats)

func (*Stats) Bump ¶

func (s *Stats) Bump(y uint8)

func (*Stats) Histogram ¶

func (s *Stats) Histogram(cfg *EdgeDetectConfig) (img *image.RGBA)

Source Files ¶

View all Source files

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