Are there any built-in functions or scripts for the GIMP that can be used to remove or reduce noise in digital photographs? Does anyone have a set of steps to follow to remove noise? There are several stand-alone programs available for Windows that do this but I haven't found any for Linux yet. Anyone know of any?
It depends on what kind of noise you are looking at. Can you describe the noise more precisely? Is it "salt and pepper" noise? Gaussian noise? If you can show an example image I can help you pick a filter.
If you just want to use a sledgehammer, you can just use a blur filter, which will reduce many kinds of noise, though you can almost always do better.
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