人脸识别中的光照处理方法，有PMUSIC 校正前和校正后的比较，包括邓氏关联度、绝对关联度、斜率关联度、改进绝对关联度。- Face Recognition light treatment method, A relatively before correction and after correction PMUSIC, Including Deng s correlation, absolute correlation, correlation of slope, improved absolute correlation.