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make the computation of the patch selection fast using GPU.
Remi-Gau
reviewed
Apr 6, 2026
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This PR adds a GPU implemenation of patch-denoise, using pytorch.
First tests shows a 50-100x speedup compared to base CPU implementation. There is probably some performance left to harness, notably in the overhead of data-loading and compilations.
For now, only optimal-threshold has been implemented, without using external noise map