Abstract: As an important brightness and color visual theory, Retinex theory has received more and more attention in recent years. We apply it to color image enhancement. Basing on the analysis of MSRCR algorithm, we make use of the histogram of image itself to improve the problem by the GW assumption and choose the parameters adaptively. The experimental results confirm the effectiveness of our algorithm in color image enhancement and the images processed get better rendering by human visual systems.

Key words: color constancy, image enhancement, color image