Hi, On Mon, Jan 15, 2018 at 11:40:32AM +0100, Florian Boor wrote: > Capturing like this the colors turn a little bit less psychedelic green and > purple. Looks like this: > http://www.kernelconcepts.de/~florian/capture2.jpeg > The dark area is in fact a very bright one. So maybe the format I read from the > sensor is not exactly what it is supposed to be or similar... May I suggest that you capture something of known colors, by pointing the camera at a monitor displaying this?: http://www.avsforum.com/photopost/data/2224298/0/04/04d8edc6_8bit_full_grad_color.png The colors will of course be off by a bit, but it should still be possible to guess how the RGB primaries were mangled. Best regards, Daniel