说明：  低光照图像增强一直是CV领域的热门研究方向之一，之前传统的基于Retinex理论的研究方法已经出现很多，比如MSR、MSRCR和MSRCP等，这些方法在低光照图像增强方面效果有明显提升。
(Low light image enhancement has always been one of the hot research directions in CV field. There are many traditional research methods based on Retinex theory, such as MSR, msrcr and msrcp. These methods have significantly improved the effect of low light image enhancement.)