I suspected that you should NOT use separate min for R G and B, and so min(minR,minG,minB) and max(maxR,maxG,maxB)
are the correct values otherwise screws up relations to each other. See by IanB here:-
http://forum.doom9.org/showthread.ph...91#post1457091
I will not be attempting (or will discard any attempt so far) to add in Auto Levels functionality into GamMac(), one of the reasons
is that AutoLevels does temporal sampling to avoid sudden changes as happens with ColorYUV(AutoLevels=true), so to continue to
use AutoLevels would be the best solution, and I dont want to re-invent the wheel.
I see no gain in trying to combine two plugins into one, when using first AutoLevels and then GamMac, would provide the exact same result.
Dont bother with the requested samples Fred, dont need them now.