Doom9's Forum - View Single Post - Confounded by YUV<->RGB Conversaion

wswartzendruber · 17th January 2021, 21:20

What the devil is going on here...

I took that from Wikipedia. The article it's from specifically states that Y is linear light and that Y' is gamma-corrected, perceptual light. It also states specifically that RGB is linear light.

So how in blue blazes do you get a gamma-corrected Y' value for output when taking linear-light values in as input...using nothing but multiplication?

17th January 2021, 21:20	#1 \| Link
wswartzendruber hlg-tools Maintainer Join Date: Feb 2008 Posts: 413	Confounded by YUV<->RGB Conversaion What the devil is going on here... I took that from Wikipedia. The article it's from specifically states that Y is linear light and that Y' is gamma-corrected, perceptual light. It also states specifically that RGB is linear light. So how in blue blazes do you get a gamma-corrected Y' value for output when taking linear-light values in as input...using nothing but multiplication?