11-14-2024, 05:02 PM
I've been looking into the GIMP Layers tab's "Composite Space" option, and I'm rather confused by it. Given a background of white pixels and a foreground of black pixels at 50% opacity, I'd expect the RGB linear colour space to give me sample merged pixels of 128,128,128 because that's about 50% of 255,255,255. However, with RGB (linear) selected I actually get pixels of 188,188,188 - significantly lighter.
When I select RGB (perceptual), though, I actually get the result I'd have expected from the linear model; pixels are darker at 128,128,128 - half way between white and black.
Is this a bug with GIMP's options here being the wrong way round, or am I misunderstanding something?
When I select RGB (perceptual), though, I actually get the result I'd have expected from the linear model; pixels are darker at 128,128,128 - half way between white and black.
Is this a bug with GIMP's options here being the wrong way round, or am I misunderstanding something?