Add new comment

some camera records four

some camera records four multipliers, while some (RGB/3 color) may use only three. In the second case, the cam_mul[1] (Green) should be copied to cam_mul[3] ('second green')

After that, cam_mul[] is usually normalized (i.e. divided to smallest value, so [1500,1000,1200,1000] will become [1.5,1,1.2,1])

And, yes, then color channels are multiplied to cam_mul[color] values.

-- Alex Tutubalin @LibRaw LLC