imagetk

package module

v0.0.0-...-9b06565 Latest Latest Go to latest Published: Mar 6, 2023 License: MIT Imports: 18 Imported by: 1

Details

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Repository

github.com/topxeq/imagetk

Links

Open Source Insights

README ¶

imagetk

Toolkit for image processing in Golang

Documentation ¶

Constants ¶

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const (
	TOP_LEFT = iota
	TOP
	TOP_RIGHT
	LEFT
	CENTER
	RIGHT
	BOTTOM_LEFT
	BOTTOM
	BOTTOM_RIGHT
)

Variables ¶

View Source

var ITKX = &ImageTK{Version: versionG}

Functions ¶

This section is empty.

Types ¶

type ImageTK ¶

type ImageTK struct {
	Version string
}

func NewImageTK ¶

func NewImageTK() *ImageTK

func (*ImageTK) EncodePNG ¶

func (p *ImageTK) EncodePNG(imgA image.Image)

func (*ImageTK) EnlargeImage ¶

func (p *ImageTK) EnlargeImage(src image.Image, scaleA float64) (image.Image, error)

func (*ImageTK) GetImageFileContent ¶

func (p *ImageTK) GetImageFileContent(fileNameA string, imageTypeA string) image.Image

func (*ImageTK) GetImageFileContentAndThumb ¶

func (p *ImageTK) GetImageFileContentAndThumb(fileNameA string, maxWidthA uint, maxHeightA uint, imageTypeA string) image.Image

func (*ImageTK) GetVersion ¶

func (p *ImageTK) GetVersion() string

func (*ImageTK) HQ2x ¶

func (p *ImageTK) HQ2x(src *image.RGBA) (*image.RGBA, error)

HQ2x - Enlarge image by 2x with hq2x algorithm

func (*ImageTK) LoadImage ¶

func (p *ImageTK) LoadImage(fileNameA string) (image.Image, error)

func (*ImageTK) LoadPlotImage ¶

func (p *ImageTK) LoadPlotImage(plt *plot.Plot, w vg.Length, h vg.Length) (*image.RGBA, error)

func (*ImageTK) LoadPlotImageInMemory ¶

func (p *ImageTK) LoadPlotImageInMemory(plotA *plot.Plot, w vg.Length, h vg.Length, formatA string) (*bytes.Buffer, error)

LoadPlotImageInMemory formatA support png, jpg...

func (*ImageTK) LoadRGBAFromImage ¶

func (p *ImageTK) LoadRGBAFromImage(imageA image.Image) (*image.RGBA, error)

func (*ImageTK) NewNRGBAFromHex ¶

func (p *ImageTK) NewNRGBAFromHex(strA string) color.NRGBA

func (*ImageTK) NewNRGBAPFromHex ¶

func (p *ImageTK) NewNRGBAPFromHex(strA string) *color.NRGBA

func (*ImageTK) NewPlotXY ¶

func (p *ImageTK) NewPlotXY(xA, yA float64) plotter.XY

func (*ImageTK) NewRGBA ¶

func (p *ImageTK) NewRGBA(r, g, b, a uint8) color.RGBA

func (*ImageTK) NewRGBAFromHex ¶

func (p *ImageTK) NewRGBAFromHex(strA string) color.RGBA

func (*ImageTK) NewRGBAP ¶

func (p *ImageTK) NewRGBAP(r, g, b, a uint8) *color.RGBA

func (*ImageTK) NewRGBAPFromHex ¶

func (p *ImageTK) NewRGBAPFromHex(strA string) *color.RGBA

func (*ImageTK) ParseHexColor ¶

func (p *ImageTK) ParseHexColor(x string) (r, g, b, a int)

ParseHexColor inspired by gg

func (*ImageTK) ResizeImage ¶

func (p *ImageTK) ResizeImage(widthA, heightA int, img image.Image, interpA ...InterpolationFunction) image.Image

func (*ImageTK) SaveImageAs ¶

func (p *ImageTK) SaveImageAs(imageA image.Image, filePathA string, formatA ...string) error

func (*ImageTK) Thumbnail ¶

func (p *ImageTK) Thumbnail(maxWidth, maxHeight uint, img image.Image, interp InterpolationFunction) image.Image

type InterpolationFunction ¶

type InterpolationFunction int

const (
	// Nearest-neighbor interpolation
	NearestNeighbor InterpolationFunction = iota
	// Bilinear interpolation
	Bilinear
	// Bicubic interpolation (with cubic hermite spline)
	Bicubic
	// Mitchell-Netravali interpolation
	MitchellNetravali
	// Lanczos interpolation (a=2)
	Lanczos2
	// Lanczos interpolation (a=3)
	Lanczos3
)

InterpolationFunction constants

Source Files ¶

View all Source files

imagetk.go

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