user_sat is used to set RAW user_sat is used to set RAW data saturation point (all values above user sat will be clipped). This clipping occurs before white balance, so wrong user_sat may cause wrong colors, not only brightness change. Use bright field if you wish to change output image brightness -- Alex Tutubalin @LibRaw LLC reply
user_sat is used to set RAW data saturation point (all values above user sat will be clipped).
This clipping occurs before white balance, so wrong user_sat may cause wrong colors, not only brightness change.
Use bright field if you wish to change output image brightness