total variation denoising

[Maël Primet]

great news :)

On Sat, May 28, 2011 at 16:07, Emmanuelle Gouillart <
emmanuelle.gouillart at normalesup.org> wrote:

> >    have you been able to do some benchmarks to see if the performance hit
> >    from Python is reasonnable?
>
> I had done a rapid benchmark when I translated the C code into Python,
> and found that the Python code was 3 times slower compared to the C with
> Cython wrapping. But now I have improved the performance with a stop
> criterion on the energy, instead of a fixed number of iterations; hence
> it is difficult to compare now (of course, the stop criterion could be
> implemented in C too, but I was much more comfortable to do it in
> Python!).
>
> The performance has to be reasonable, because I have a student who is
> using this code to denoise large 3D images (512^3)!
>
> Emmanuelle
>
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