Which kind of algorithm does Neatimage use to remove noise and grain from photos? I understand that this is proprietary software, but probably someone has an idea. References to publications or to similar algorithms are welcome.
Which kind of algorithm does Neatimage use to remove noise and grain from photos?
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This paper looks promising:
http://research.microsoft.com/~larryz/04359321.pdf
It discusses NeatImage’s algorithm briefly and would be a good place to start.