[svlug] image de-noiser software

Florin Andrei florin at andrei.myip.org
Thu Jan 15 10:10:36 PST 2009

Rick Moen wrote:
> Quoting Florin Andrei (florin at andrei.myip.org):
>> On Windows, there are several de-noiser apps that a photographer can use 
>> with good results - Neat Image, Noise Ninja, Topaz DeNoise, etc.
>> Are there any comparable applications on Linux? 
> 1. GREYCstoration (GIMP plugin), also usable as a command-line tool
> 3. Wavelet denoise plugin (GIMP), http://registry.gimp.org/node/4235

I just saw the latest GIMP article on ArsTechnica...


...(BTW, pretty awesome article), which made me aware of GREYCstoration 
and wavelet denoise. I tried them, but:
- wavelet denoise is not very smart. It kills a lot of detail if you do 
a deep noise reduction.
- GREYCstoration seems to work only on luma noise. Unless I'm missing 
something, it doesn't seem able to handle chroma noise.

I'll try the others.

BTW, I know there are no good solutions to this problem, so anything 
that may be satisfactory for what I do will inevitably include some 
subjective factors (the "good enough for me" clause).

Florin Andrei


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