Olzhas Zhumabek cb5bc9d8c2 Add Perona–Malik anisotropic diffusion algorithm (#500) ...

The output type must be floating point, thus a check was added to make sure it
is the case. Though I had to add specific cases for float32_t as std::is_floating_point does not
consider it a floating point type

The accumulate part was wrong, it multiplied by delta_t on every sum, which is wrong

Use 8 way nabla compute.
This is just different discretization of Laplace operator
https://en.wikipedia.org/wiki/Discrete_Laplace_operator

Laplace stencils are now the same as in mathematical notation

The new function will provide a uniform way to generate stencils
by making sure directions are indexed properly

Add only required stencil points:
The 5 points Laplace stencil is now adding only required points and not assuming that others are zero

2021-01-22 23:55:17 +01:00

4.9 KiB

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