Thanks @zachlewis!
The quick takeways and notes for me are that:
- It should be relatively straightforward to make the RRT hue invariant
- This is almost the HSV Control Based Study Model from @matthias.scharfenber and I, the main difference is the desaturation and value compression components.
- This experiment hints at the fact that the hue shifts we saw with the HSV Control Based Study Model were a consequence of the DRT and not the operator itself, thus, the VWG selected Gamut Mapping Operator is potentially introducing hue-shifts which we should check.
- As I gamut mapped directly inside it, the current DRT is applied in the final display space, do not have to be but it was here done as an optimisation step, but this highlights the fact that we will need gamut mapping in the display encoding block, hence those Output-Referred LMTs I mentioned.
- Because it is akin to the HSV Control Based Study Model, it is straightforward to add Hue Twists and maybe bring skin and fire in a pleasing spot as default, this will be my next test.
Cheers,
Thomas