Sheng-Chih Yang - Department of Computer Science and Information Engineering, National Chin-Yi University of Technology, Taichung City ۴۱۱, Taiwan, ROC
Cheng-Jian Lin - Department of Computer Science and Information Engineering, National Chin-Yi University of Technology, Taichung City ۴۱۱, Taiwan, ROC
Hsueh-Yi Lin - Department of Computer Science and Information Engineering, National Chin-Yi University of Technology, Taichung City ۴۱۱, Taiwan, ROC
Jyun-Guo Wang - Department of Computer Science and Information Engineering, National Chin-Yi University of Technology, Taichung City ۴۱۱, Taiwan, ROC
Cheng-Yi Yu - Department of Computer Science and Information Engineering, National Chin-Yi University of Technology, Taichung City ۴۱۱, Taiwan, ROC

In this study, an image backlight compensation method using adaptive luminance modification is proposed for efficiently obtaining clear images.The proposed method combines the fuzzy C-means clustering method, a recurrent functional neural fuzzy network (RFNFN), and a modified differential evolution.The proposed RFNFN is based on the two backlight factors that can accurately detect the compensation degree. According to the backlight level, the compensation curve function of a backlight image can be adaptively adjusted. In our experiments, six backlight images are used to verify the performance of proposed method.Experimental results demonstrate that the proposed method performs well in backlight problems.

Neural fuzzy network, Recurrent network, Differential evolution, Fuzzy c-means, Backlight compensation, Contrast enhancement