Looking into understanding more the science behind gamut mapping etc… Was wondering if someone could inform me on what ACES uses for redering intent of colors: perceptual, relative, absolute or some fancy new way of doing it?
It does not fit neatly into the ICC profile definitions.
It references to a mid-grey rather than a white as in the ICC.
Further it does play with saturation in order to match between outputs. (whether
with the tone curve or explicit operation on Sat)
If I had to pick one, I would say the intent is perceptual – just not in the exact way
that ICC means it. We wanted a useable match between outputs so that one grade
could be applied in multiple output contexts.
Very cool… It seems that it’s more “natural” looking that when using a straight lut (to go from P3 to 709 for example). I always find that my trim passes are much easier and atrightforward in ACES.