主要是对人脸进行标记，并且显示其网格标记和二值图像-Mainly of face, and shows its grid markers and binary image

主要是进行一个人脸的光照补偿和灰度处理后的直方图，当然有些比较图在里面。- Mainly histogram after exposure compensation and gradation processing of a human face, of course, some comparison chart on the inside