I have been trying to get to grips with luminosity masks for a couple of months
now - on and off. After reading the Gimp tutorial and watching a couple of
You Tube vids I think/thought I understood them :-)
On a photo where I wanted to lighten the darker bits I produced a set of
luminosity cha
OSX GIMP 2.8.14 - http://gimp.lisanet.de
If I apply a luminosity mask to an image by selecting a RGB channel(from
a layer that has been desatuarated via luminosity) with any of red,
green or blue channels as the mask, if I then go on to adjust by curves
(*value*) I get a shift in colour, as you wo
