Here I apply the color constancy algorithm I am working on to a chromatic version of the "Koffka ring" image. The regularization filter used was h128f5 (a 128 tap filter for Hurlbert regularization using parameters:
The Luminance components and the detected edges in the luminance channel are also used in the computations.
Other koffka test images processed using the same algorithm and parameters:
These are the results of processing Koffka images generated with a simulated spatially varying and noisy illuminant.
The original image:
After lightness calculation:
After relaxation:
The original image:
After lightness calculation:
After relaxation:
