Adaptive Color Restoration and Luminance MSR Based Scheme for Image Enhancement
Jinquan Yan, Ke Zhang · 2010
A non-linear image enhancement algorithm called Adaptive Color Restoration and Luminance MSR Based Scheme for Image Enhancement (ACRL_MSR) is presented in this paper to improve the visual quality of color images under poor lighting condition. The Red, Green, Blue(R, G, B) color bands are enhanced by adjusting luminance which is automatically enhanced to a proper range based on Human Visual System (HVS) via the adaptive parameter. At the same time the percentage of R, G, B in three bands of the output images is almost as same as the original one to prevent color distortion. The color bands in dark/shadow zones are enhanced partly by luminance and partly by their original color values to make these areas more colorful and natural. The new algorithm is observed from the experiment results, which produces more natural and vivid color than those by MSRCR and LB_MSR.