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Explore advanced image enhancement techniques in mathematical imaging including non-local mean filtering, Laplacian mask, unsharp masking, isotropic diffusion, and anisotropic diffusion. Learn how to apply these methods to improve the quality of images.
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Math 3360: Mathematical Imaging Lecture 13: Non-local mean filtering, Laplacian mask, Unsharp masking, Isotropic diffusion, Anisotropic diffusion Prof. Ronald Lok Ming LuiDepartment of Mathematics, The Chinese University of Hong Kong
Non-local mean filter Noisy image Non-local mean
Non-local mean filter Flat filter Non-local mean
Laplacian mask Original image Laplacian mask
Laplacian mask Original image Laplacian mask
Laplacian mask Original image Laplacian mask
Isotropic diffusion Original image Sigma = 1.98 Sigma = 4.28 Sigma = 8.24