CIELUV Transformations

[Isaac Gerg]

Good stuff -- thank you for sharing.


On Wed, Oct 23, 2013 at 11:56 AM, Jaime Fernández del Río <
jaime.frio at gmail.com> wrote:

> I have a coworker that is a member of one of CIE's divisions, so I asked
> him the LAB vs LUV question, and here's his reply:
>
> "Yes, there is a simple historical explanation - LUV was championed by the
> display industry while LAB was the favorite of "surface" industries (print,
> materials manufacturing, ...). LUV has the beneficial property of having a
> saturation predictor and of being related to the luminance-linear u'v'
> chromaticity space. Let me know if you'd like more detail.
>
> Today, I am not aware of LUV being used anywhere - LAB has won the battle
> between the two and is used even for displays. Either that, or, where
> higher performance is needed in terms of perceptual prediction accuracy,
> CIECAM02 (a color appearance model) is used. It is significantly more
> complex, but predicts more visual phenomena and allows for taking viewing
> conditions better into account.
>
> So, I'd say use LAB if what it does is good enough and CIECAM02 if it
> fails (e.g., for gamut mapping LAB has serious hue non-uniformity)."
>
> So, who's up for coding CIECAM02 color transformations, whatever that may
> be? ;-)
>
> Jaime
>
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