Anisosotropic diffusion may be awesome, but as we have seen, we don't know where to stop. Nordstrom an electrical engineer showed (1992) that if by adding f-u on the right hand of the Perona Malik equation makes its steady state non-trivial. Below is the steady state that was reached at t=1.05.
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| Non-trivial steady state |
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| Difference between the original and the steady state of Norstrom eq. |
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