tools

func BytesToImage ¶

func BytesToImage(data []byte) (image.Image, string, error)

BytesToImage receive image []byte, return image.Image

func Cover ¶

func Cover(top image.Image, bg image.Image, x0, y0, offsetX, offsetY int) *image.RGBA

Cover 能将一张图覆盖到另一张的指定位置

func Cut ¶

func Cut(img image.Image, x0 int, y0 int, x1 int, y1 int) (image.Image, error)

func ReadImage ¶

func ReadImage(filePath string) (image.Image, error)

func Resize ¶

func Resize(img image.Image, width int, height int) image.Image

Resize 等比例变化