Dear Edmund, > As you have knowledge of the various algorithms, could you quickly list > those where color balance and demosaicing commute, at least in the middle of > the luminance range, and those where it does not? > That seriously depends on implementation, and easy to check: if a profile for half-mode (-d -h in dcraw terms) is close to a profile after demosaicking then no harm. -- Best regards, Iliah Borg