LearningTransformsv2

White balance neutralises a colour cast

Channel gains map a known neutral surface back toward neutral values.

Output

Corrected scene #F4F1EA

Neutral grey #C8C4BC

Input

Warm scene #E8A060

Cast grey #D4B896

Input

Warm scene #E8A060

Cast grey #D4B896

Corrected scene #F4F1EA

Neutral grey #C8C4BC

Relationship

A warm illuminant pushes greys toward orange. Gains on the blue channel restore a colour that should be neutral. Change the cast and the target grey.