Quoting Durumdara <durumd...@gmail.com>:
> If I saw good, the Automatic White Balance function uses
GIMP's Auto White Balance menu command performs the same operation as
clicking on the AUTO button in the "Colors->Levels" dialog. It sets
the "black point" (lower threshold) and "white point" (the upper
threshold) of each of the red, green, and blue channels (separately)
based on that channel's histogram.
> But I don't know, how to parameterize to get same effect that the GIMP do
> when I clicking to the Menu.
Use the PDB function 'gimp-levels-stretch'. To my knowledge, it is
precisely equivalent to the menu's Auto White Balance function.
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