The app's hot-pixel pass takes gross defects only; at ISO 6400-25600 a 6D
frame keeps 1000-2000 photosites more than 8 sigma beyond all their
same-colour and adjacent neighbours, which the network turned into specks.
The same two tests with the threshold in the photosite's own sigma, plus
the factor of two that keeps a bright point of light (where 8 sigma is a
sliver of the signal). The next model is trained behind exactly this; on
an ISO 25600 frame the Rust and training code both repair 935.
dtourolle
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