imageutil

package

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Versions in this module

v1

v1.3.5

Nov 27, 2020

v1.3.4

Nov 27, 2020

v1.3.3

Nov 26, 2020

v1.3.2

Nov 25, 2020

v1.3.1

Oct 30, 2020

Changes in this version

+ const FileExtensionWebp

+ const FormatNameJPG

+ const FormatNamePNG

+ const FormatNameWEBP

+ func DecodeWebpRGBA(r io.Reader) (image.Image, string, error)

+ func WriteFileWEBP(filename string, img image.Image, lossless bool, perm os.FileMode) error

+ type Matrix [][]image.Image

+ func MatrixRead(imglocations [][]string) (Matrix, error)

+ func (matrix Matrix) AddBackgroundColor(clr color.Color)

+ func (matrix Matrix) AddBackgroundColorHex(hexcolor string) error

+ func (matrix Matrix) Merge(largerX, largerY bool) image.Image

v1.3.0

Oct 8, 2020

Changes in this version

+ func IsNilOrEmpty(img image.Image) bool

+ func MatrixMerge(matrix [][]image.Image, largerX, largerY bool) image.Image

+ func MatrixMergeRead(matrix [][]string, largerX, largerY bool) (image.Image, error)

+ func MergeXSameY(images []image.Image, larger bool) image.Image

+ func MergeXSameYRead(locations []string, larger bool) (image.Image, error)

+ func MergeYSameX(images []image.Image, larger bool) image.Image

+ func MergeYSameXRead(locations []string, larger bool) (image.Image, error)

+ func NewRGBAColor(rect image.Rectangle, clr color.RGBA) *image.RGBA

+ func NewRGBATransparent(rect image.Rectangle) *image.RGBA

+ func NewRGBAWhite(rect image.Rectangle) *image.RGBA

+ func ReadImages(locations []string) ([]image.Image, error)

+ func ResizeSameX(images []image.Image, larger bool) []image.Image

+ func ResizeSameXTwo(img1, img2 image.Image, larger bool) (image.Image, image.Image)

+ func ResizeSameY(images []image.Image, larger bool) []image.Image

+ func ResizeSameYTwo(img1, img2 image.Image, larger bool) (image.Image, image.Image)

+ func SliceXY(images []image.Image, maxIdx int) (minX, maxX, minY, maxY, sumX, sumY int)

v1.2.1

Sep 4, 2020

v1.2.0

Sep 1, 2020

Changes in this version

+ func AddBackgroundColor(imgSrc image.Image, clr color.Color) image.Image

+ func ImageAnyToRGBA(src image.Image) *image.RGBA

+ func ImageWithSetToRGBA(src ImageWithSet) *image.RGBA

+ type ImageWithSet interface

+ At func(x, y int) color.Color

+ Bounds func() image.Rectangle

+ ColorModel func() color.Model

+ Set func(x, y int, c color.Color)

v1.1.0

Aug 20, 2020

Changes in this version

+ const JPEGQualityDefault

+ const JPEGQualityMax

+ func ImageToRGBA(img image.Image) *image.RGBA

+ func NRGBAtoRGBA(imgNRGBA *image.NRGBA) *image.RGBA

+ func NegativeOffset(width, height, offset uint) image.Point

+ func PaintBorderRGBA(img *image.RGBA, clr color.RGBA, width uint)

+ func PaintColorRGBA(img *image.RGBA, clr color.RGBA)

+ func PaintColorRGBARectangle(img *image.RGBA, clr color.RGBA, rectNew image.Rectangle)

+ func ParseScaler(rawInterpolation string) (draw.Scaler, error)

+ func ReadImageAny(s string) (image.Image, string, error)

+ func ReadImageFile(filename string) (image.Image, string, error)

+ func ReadImageHttp(imageUrl string) (image.Image, string, error)

+ func RectangleBorderXMax(rect image.Rectangle, pixels uint) image.Rectangle

+ func RectangleBorderXMin(rect image.Rectangle, pixels uint) image.Rectangle

+ func RectangleBorderYMax(rect image.Rectangle, pixels uint) image.Rectangle

+ func RectangleBorderYMin(rect image.Rectangle, pixels uint) image.Rectangle

+ func ResizeMaxDimension(maxSide uint, src image.Image, scale draw.Scaler) image.Image

+ func ScalerBest() draw.Scaler

+ func ScalerDefault() draw.Scaler

+ func Square(src image.Image) image.Image

+ func YCbCrToRGBA(src *image.YCbCr) *image.RGBA

v1.0.2

Jun 17, 2020

v1.0.1

Jun 8, 2020

v1.0.0

May 29, 2020

Changes in this version

+ const DefaultQualityJPEG

+ func AddBackgroundWhite(imgSrc image.Image) image.Image

+ func Aspect(width, height int) float64

+ func BestScaler() draw.Scaler

+ func DefaultScaler() draw.Scaler

+ func ImageAspect(img image.Image) float64

+ func ImageWidthHeight(img image.Image) (int, int)

+ func IsImageExt(imagePath string) bool

+ func MergeHorizontalRGBA(ims ImageMetaSet) image.Image

+ func OverlayCenterYLeftAlign(imgBg, imgOver image.Image) image.Image

+ func ParseScalar(rawInterpolation string) (draw.Scaler, error)

+ func ReadImage(filename string) (image.Image, error)

+ func ReadImageDimensions(imagePath string) (int, int, error)

+ func Resize(width, height uint, src image.Image, scale draw.Scaler) image.Image

+ func Scale(src image.Image, rect image.Rectangle, scale draw.Scaler) image.Image

+ func WriteFileJPEG(filename string, img image.Image, quality int) error

+ func WriteFilePNG(filename string, img image.Image) error

+ type ImageMeta struct

+ File *os.File

+ FormatName string

+ Image image.Image

+ type ImageMetaSet struct

+ ImageMetas []ImageMeta

+ func NewImageSetFiles(filenames []string) (ImageMetaSet, error)

+ func (ims *ImageMetaSet) CloseFilesAll() error

+ func (ims *ImageMetaSet) MaxX() int

+ func (ims *ImageMetaSet) MaxY() int

+ func (ims *ImageMetaSet) Stats() ImageStatsMulti

+ func (ims *ImageMetaSet) SumX(maxIndexInclusive int) int

+ func (ims *ImageMetaSet) SumY(maxIndexInclusive int) int

+ type ImageStatsMulti struct

+ MaxX int

+ MaxY int

+ SumX int

+ SumY int

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