关键词: 各向异性扩散方程, 并行计算, 图像去噪, MPI

Abstract: Anisotropic diffusion equation is a nonlinear image processing methods by using Partial Differential Equation（PDE），with the nonlinear diffusion coefficient，it can restrain noise fairly good，reserve original edge and texture，especially for image denoise.However，the computing size of the PDE is huge when the image pixel is big and the time cost of computing is important for the real time system.For the anisotropic diffusion equation in the MPI based environment，parallel computing can reduce the computing time greatly by using independence of image pixel and subsequent of PDE while keeping the good performance of image deniosing.

Key words: anisotropic diffusion equation, parallel computing, image denoise, MPI