Re:Gamma error in picture scaling
by AstralStorm on Tuesday January 08, 2019 @03:06AM
(#18854071)
Those LUT or power or logarithm functions are not free... linear light scaling is about 2x slower in practice. Not that it matters until you get to 8K.
This is why downscaled videos feel to have more contrast, or solarised due to bruteforce compensation on most Android devices.