Perona和Malik在热传导方程的基础上，建立了各向异性扩散方程并将其应用到了图像处理中尺度空间的图像平滑上，该模型针对图像的边缘部分和非边缘部分进行不同性质的图像处理，同时解算方程的迭代格式简单，克服传统滤波的主要缺陷，是图像质量大为改善，为图像的边缘检测和增强开辟了新的方向。-This process smoothes regions while preserving, and enhancing, the contrast at sharp intensity gradients.

图像的各向异性扩散，利用matlab实现Perona_Malik算法，梯度阈值K通过对图像求解2-范数的方法迭代获得-Anisotropic diffusion images, using matlab to achieve Perona_Malik algorithm, the gradient threshold images by solving the K 2- norm method will be obtained

PM扩散的二维图像去噪MATLAB代码，原版代码，anisodiff.m-PM proliferation of two-dimensional image denoising MATLAB code, the original code, anisodiff.m

实现perona-malik算法的matlab源代码，东大数字图像处理课程小组作业。-Achieve perona-malik algorithm matlab source code, a large digital image processing course east group work.