GIMP's Hue, Saturation and Colour layer modes

Ajohn · October 21, 2016, 2:23pm

I sometimes flick through all of the layer modes to see what they do and wonder about 2 of these. Hue for instance seems to be more of a dodge and burn based round mid grey doing nothing. Saturation seems to desaturate and do nothing else.

What I would expect them to do is shift hue and saturation based on shade of grey and opacity but maybe I am missing something and they should be used to do this in some other way ??

John

Morgan_Hardwood · October 21, 2016, 3:47pm

https://docs.gimp.org/en/gimp-concepts-layer-modes.html

Ajohn · October 21, 2016, 5:22pm

Thanks for the link.

Not all that useful for photography by the look of it. Pity really. It seems that CS6 does do something along the lines of what I mentioned. On the GIMP saturation may reduce if done very slowly but no way to increase it.