Another Useful LUT is the Color Balance. It enables one to increase or
decrease the individual components of Red, Green and Blue for either
shadows, midtones or highlights.
Demo
Open lena_color.jpg.
Invoke the colour balance dialog by selecting
<Image>
→
Layer
→
Colors
→
"Color Balance..."
Play with the settings while trying to cancel the over-colouring of the
picture as much as possible.