Can anyone suggest good illumination normalization algos for face authentication. I have tried basic algos like DoG, LBP, ..?

Question

As part of my project, I want to build an illumination invariant face authentication system. The constraint is I have only 1 enrollment image, but I have the option of addin

Answer 1

Have you tried converting to Lab color space? http://en.wikipedia.org/wiki/Lab_color_space

Code: http://robotics.stanford.edu/~ruzon/software/rgblab.html