func image/color.RGBToCMYK

2 uses

	image/color (current package)
		ycbcr.go#L315: func RGBToCMYK(r, g, b uint8) (uint8, uint8, uint8, uint8) {
		ycbcr.go#L371: 	cc, mm, yy, kk := RGBToCMYK(uint8(r>>8), uint8(g>>8), uint8(b>>8))