Reducing Illumination Based on Nonlinear Gamma Correction
Yihua Shi, Jinfeng Yang, Renbiao Wu · Proceedings - International Conference on Image Processing · 2007
Illumination always affects image quality seriously in practice. To weaken illumination effect on image quality, this paper proposes an adaptive gamma correction method. First, a mapping between pixel and gamma values is built. The gamma values are then revised using two non-linear functions to prevent image distortion. Experimental results demonstrate that the proposed method performs better in readjusting image illumination condition and improving image quality.