1 | initial version |
I guess people do not know the basic search option in google anymore:
http://en.wikipedia.org/wiki/CIE_1931_color_space
Basically, CIE XYZ is another color system compared to RGB. In order to transform an existing image from RGB to XYZ color system, you need to perform operations on the coƫfficients of each color channel. Combining all these operations results in a operation matrix.