RGB Saturation Gamut Mapping Approach and a Comp/VFX Perspective

[Thomas_Mansencal]

@nick

The advantages of the C2 continuity of tanh need to be balanced against the fact that it goes so soon into non-invertibility.

Yeah, atan is the next one that is C2 continuous and maintains saturation to high level.

@JamesEggleton

I think it would be interesting to see Thomas’ Float16 domain test applied to these functions. I’ve run out of time today, but I might get round to it later in the week.

Hey @JamesEggleton,

It should be trivial to add them in the notebook, everything runs online!