implement of retinex .include sigle retinex ,msr and msrCR. using c++ ,opencv

是对原来网站上有得61549853Retinex文件的改进，原来的只能处理小的图像，这个也可以处理大的图像-Is the original site gains and improved 61549853Retinex file, the original can only handle small images, that can handle large images