Contents
- Index
Eye Sensitivity
The eye has a non-linear response to color and there are several different algorithms to calculate an intensity based on this non-linear relationship. Here are two of which the first is employed in this program. Y is the intensity R is red G is green and B is blue.
Y = .2126R + .7152G + .0722B (Intensity from color phosphor Rec. 709)
Y = .49R + .86G + .28B (From Photoshop K)