中文说明：
对李纯明的DRLSE进行了改进 利用各向异性扩散提高了分割弱边缘的能力 改进的高斯滤波代替惩罚项 加快了演化速度 节省了时间
English Description：
In this paper, we improve Li Chunming's drlse, and use anisotropic diffusion to improve the ability of weak edge segmentation. The improved Gaussian filter replaces the penalty term to accelerate the evolution speed and save time