Am 22.12.2016 um 22:22 schrieb Lorenzo Bossi:
Thank you for the quick reply. The color clipping works well for b&w.
Just to understand better the problem, is it related to the fact that
the blue leds emit some light camera sensors are too much sensitive?
Mostly yes. darktable uses the Lab color space for the larger part of
its processing pipeline. That color space is designed to represent the
typical range of colors that human beings are able to see. A technical
device like a camera sensor may exceed that range and produces unbounded
values when converted to Lab. That seems to be the case for blue LED
light and various modern camera sensors.
Ulrich
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