Showfoto/Brightness
Photo KDE Tutorial 1-4: Brightness/Contrast/Gamma + Hue/Saturation/Lightness
Unai Garro - Summer 2008
I began this series of tutorials some time ago already, and all of them covered light issues. We used tools like levels, curves, or white balance adjustment.
I wanted to approach other type of issues this time, but I think light issues would be rather incomplete if I didn't address contrast, brightness and colors adjustments. Possibly you are somewhat familiar with these already, but I think they're worth covering.