[Gimp-user] Call Auto White Balance example needed...

[saulgoode at flashingtwelve.brickfilms.com]

Quoting Durumdara <durumdara at gmail.com>:

> If I saw good, the Automatic White Balance function uses
> "gimp-color-balance".

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.