直方图均衡：增强图像的对比度，使暗的部分变亮，亮的的部分变暗，对光照强时具有较强的鲁棒性-Histogram equalization: to enhance image contrast, the dark parts brighter and dark parts brighter on light intensity, have a robust

网站商城的后台框架和模板，在后台开发总会用的到- LBP returns the local binary pattern image or LBP histogram of an image. J LBP(I,R,N,MAPPING,MODE) returns either a local binary pattern coded image or the local binary pattern histogram of an intensity image