I hope this hasn't been asked adn answered before - but a search
What I'd like to do is create a mask for one layer based on the
saturation of another layer. In the mask, white would represent totally
saturated values from the other layer, while black would represent
totally desaturated values from the other layer (or vice versa - I could
always reverse them). Of course, the mask would then work the way it
always has, in effect providing levels of transparency based on the
values from black to white, (which, actually are, by that time, based
based on the saturation of the choosen other layer.
Anyone know a way to do this?
Thanks - Gobo