This toolbox has functions to perform nonlinear diffusion images. This kind of image filtering is particularly useful for reducing noise and to simplify images for further segmentation. Much of these functions are based on Perona and Malick s work, a

Example: A = double(imread( fingerprint.png ))/255 B = coherencefilter(A,4, sigma ,1.5, rho ,5) image(min(max(B,0),1)) axis image [1] Weickert, J. 1996. Anisotropic Diffusion in Image Processing. Ph.D. Thesis, Dept. of Mathemati

该程序是Weickert提出的结构张量扩散去噪模型。-The program corresponds to the structure tensor diffusion denoising model which is proposed by Weickert

Weickert各项异性扩散去噪是在经典的PM 模型基础上，考虑扩散的方向性，从而达到更好地去噪效果。