====== Saturation ======
Saturation adjusts the color saturation of an 8-bit color image. Hoku converts the image to the YES color space, and you can enter scale factors for its two color components:
  * **red-green** (a)
  * **blue-yellow** (b)

The output is the same type as the input. To adjust saturation interactively, you can also use the panel in Show and apply the result with [[intermediate_level:trc|TRC]].