def jpeg.ycck

gralha-jpeg-decode@0.1.0.1 · jpeg.bend:701

import Base
import gralha-image@0.1.0.1/image.bend as Img

701def jpeg.ycck(c: Img.Color, +k: F32) -> Img.Color:
702  Img.Color{r, g, b, a} = c
703  Img.Color{jpeg.channel(((1.0 - r) * k : F32)), jpeg.channel(((1.0 - g) * k : F32)), jpeg.channel(((1.0 - b) * k : F32)), 1.0}