中文说明：应用背景在课堂上我们没有解决的公开问题是决心%的停止标准-即，需要多少次迭代？请你为自己的思想和修改工具，所以%电视/下午的扩散不需要用户指定的参数（迭代次数）。%的提示：1）var2（X-Y）= 20被称为前；2）当一个迭代算法%收敛？和公司；及；及；及；及；及；关键技术%电视和下午2类图像的扩散：边缘与纹理%（样本图像edge.pgm和texture.pgm给出）。在电视和下午，这是一个适合的边缘图像%更好？纹理图像如何？
English Description：
Application background% An open issue we have not addressed in the lecture is the determination % of stopping criterion - i.e., how many iterations are needed? % Please apply your own thought and modify the toolset so % tv/pm diffusion do not need a user-specified parameter (iteration number). % Hint: 1) var2(x-y)=20 is known as a prior; 2) when does an iterative algorithm % converge? Key Technology% Compare TV and PM diffusion for two classes of images: edge vs. texture % (sample images edge.pgm and texture.pgm are given). Between TV and PM, which one fits the edge image % better? How about the texture image?