paint

func FloodFill ¶

func FloodFill(img image.Image, sp image.Point, c color.Color, t uint8) *image.RGBA

FloodFill fills a area of the image with a provided color and returns the new image. Parameter sp is the starting point of the fill. Parameter c is the fill color. Parameter t is the tolerance and is of the range 0 to 255. It represents the max amount of difference between colors for them to be considered similar.