You can start here: what does cam_xyz represent, what kind of colour transform, what is it applied to, and what's the result? Before you know the answer the life will be not easy. Put it another way, if you are dealing with colour, it's only logical to start with a bit of study of colour engineering, and not to rely on guessing from the code or trial and error.
You can start here: what does cam_xyz represent, what kind of colour transform, what is it applied to, and what's the result? Before you know the answer the life will be not easy. Put it another way, if you are dealing with colour, it's only logical to start with a bit of study of colour engineering, and not to rely on guessing from the code or trial and error.