Ignoramus23731 wrote:
> OK, I am VERY hopeful about GIMP now that I got some guidance on
> cropping keyboard shortcuts. I can see now how I can very quickly crop
> and rotate pictures. Great. GIMP has matured a lot in the last 10
> years or so.
>
> Two more questions.
>
> 1) How do I adjust white balance? If I photograph darkish oily objects
> (like machine parts) on light background, the images I get are too
> dark. I would like to make them lighter.
>
-> Colors -> Brightness-Contrast
> 2) How do I adjust red balance? Sometimes a photograph makes objects
> with some rust on them, look rustier than they really are. I believe
> that by adjusting red balance, I could address it.
>
->Colors ->Components ->Channel Mixer
Also ->Colors->Levels or ->Colors ->Curves using a selected channel in the
drop down selection of either of these tools allows you to adjust red,
blue, green or alpha channels.
> I found a color balance tool, but it controls some weird colors
> instead of white, red, green and blue. What am I missing?
>
Open the 'Colors' dialog and look at all the tools to see what can be
done... Opening all the 'Windows' of the 'Filter Pack' filter gives lots
of
options as well.. Once you learn a few of these tools you'll then
understand what those 'weird colors' are in the Hue-Saturation tool.
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