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Gamma is by definition non-linear so a CSC matrix can never account for it. Pretty much all color spaces intended for content delivery use some kind of gamma co
by formerly_proven 5y ago
Gamma is by definition non-linear so a CSC matrix can never account for it. Pretty much all color spaces intended for content delivery use some kind of gamma correction because as you say brightness is perceived on a log-scale and you don't want to waste any bits on stuff nobody is going to perceive.
- fxtentacle 5y agoI agree with you, but I see that as an omission in the article that they treat sRGB like RGB when one is logarithmic and the other is linear gamma.
- zokier 5y ago"RGB" does not really specify any particular colorspace, s I don't know if it could really be said to have any well-defined gamma, linear or not.
- fxtentacle 5y agoAgree again, but the article assumes linear gamma for RGB. Also if I remember correctly, the CIE-RGB is specified to be linear as to be compatible to CIE-XYZ. Since the article omitted the CIE prefix on XYZ, I believe they also meant to refer to the CIE RGB variant. Or at least, that's where that conversation formula came from.