Re: [csswg-drafts] [css-color] Discussion of Conflicts & Resolutions: D50/D65, LAB/LUV, ICC/OCIO (#6061)

Just tying a loose end in this closed thread:

> _CIE Lab does _not_ go to cone space, this statement is incorrect....._ 

Not certain exactly what I was thinking when I wrote it, I edited post for clarity... I believe I was trying to convey something I was working on, which is the idea of a simplified but accurate perceptually uniform space based on three narrow primaries, which after the relationship to the cone fundamentals is determined, provide everything needed to predict a color (without multiple matrixes to transform), but this space I am probably abandoning due to the advent of OKLab. 


> CIE LUV does exhibit the purple shift.

I have tests showing better results than LAB, but again, I've more or less dropped it, I have more important projects in tow.
> Dragging things back to the CSS Color 4 specification, the purple sift was dealt with by using OKLCH as the space for gamut mapping and OKLab as the default space for interpolation. This also avoids a D65 to D50 adaptation step, as OK uses D65.

Yes I was very happy to see the inclusion of OKLab.


-- 
GitHub Notification of comment by Myndex
Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/6061#issuecomment-1161244824 using your GitHub account


-- 
Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config

Received on Tuesday, 21 June 2022 04:16:09 UTC