can anyone explain how the automatical white balance works? - I can not
find anything about it in the documentation. It can be found at the menu
in Layers->Colours->Auto->White Balance. I'm not sure if this are
exactly the right words because I use the german version.
How does this feature know which pixel should be white? - I expected
something like the manual white balance in digital cameras: Pointing and
selecting an area which should be white, the rest of the picture will
be changed accordingly.
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