I was just playing with, what I thought, was the Lossless "Colour invert" operation in order to do some editing in dark areas, when I found that no, it isn't lossless.
Compare: theese two squares. left is original, right is original with 2x colour invert.
Edit Well, some checking and it seems I can get mostly the same effect with a pure coloured layer and the burn layer operation. That helps a bit. Normal "Layer->Colour->invert" is not really what I'm after either. But, it seems that this is a rounding problem as to be found with the RGB->HSV->RGB conversions.
Posted by spider at February 4, 2005 02:20 PM