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Relation between Laplacian and conductivity computation step #517

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simmplecoder opened this issue Aug 25, 2020 · 0 comments

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cat/question google-summer-of-code

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simmplecoder commented Aug 25, 2020

Current interpretation:

Every pixel in the source is transformed into 9 pixels, with surrounding pixels being difference in that direction and the pixel itself is replaced by zero. Then kernel is computed for each pixel using conductivity function, convolved with the new 9 pixels, and then convolved by Laplacian kernel. This is the only explanation I have come up with that does the same as the implementation.

So the question is "Is this right interpreation?"

The original wording of the algorithm can be found here:
http://www.sci.utah.edu/~gerig/CS7960-S2010/materials/Perona-Malik/anisotropic_diffusion-Book.pdf

simmplecoder added the cat/question label

mloskot added the google-summer-of-code label

simmplecoder mentioned this issue

Add Perona–Malik anisotropic diffusion algorithm #500

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