dither_go

func CreatePalette ¶

func CreatePalette(colors ...color.Color) []color.Color

CreatePalette creates a palette slice of variable amount of color.RGBA structures.

WARNING: Always create color.RGBA values with CreateRGBA() function to avoid accessing invalid memory addresses.

func CreateRGBA ¶

func CreateRGBA(r uint8, g uint8, b uint8, a uint8) color.RGBA

CreateRGBA creates new color.RGBA structure with provided (r,g,b,a) color channels.

NOTE: Argument types are set to unint8, values higher than 255 will result in 'Out of range' errors.

func OpenImage ¶

func OpenImage(path string) (image.Image, error)

OpenImage opens image file and decodes its contents using image.Decode function.

func SaveImage ¶

func SaveImage(img_data image.Image, output_path string, encode_format string) error

SaveImage saves provided image data in specified output path and encodes it to the supported format.