I usually use noise reduction with a grain of salt. As I understand, 
GREYCstoration differs in its approach from most of other filters: it 
tries to predict some edges in initial picture, not to simply blur it.
        I usually decrease the amount of noise reduction the plug-in provides 
as default. Also if only some important details suffer from visible 
noise they can be selected and GREYCstoration then applies to the 
selection only. It takes much less time and memory.
        Concerning its development it seems it does not take place now :(. The 
latest version I ever seen is greycstoration-0.2.4-a.tgz . I do not 
remember where I've got it from.

Fabrizio Lippolis wrote:
> Alexander Rabtchevich ha scritto:
>> 4. GREYCstoration - for noise reduction.
> Yesterday I have tried this one and dcam noise 2. Well, GREYCstoration 
> seems rather slow to me, it takes really long time to complete and at 
> the end I didn't see any improvement to the image (maybe the parameters 
> where not set the right way). The second is much faster though in the 
> first tries the result contained very blurred areas where the noise is 
> particularly strong. Anyway playing with the parameters I could obtain 
> still good details containing the noise and the result is very similar 
> to what I obtained applying the gaussian blur.
> Being slower I assume GREYCstoration performs much more complex 
> calculation, do you think it offers a better algorithm than the other 
> plugins around? On the other hand it looks it is not mantained very 
> actively, or am I wrong?
> Best regards,
> Fabrizio

With respect
Alexander Rabtchevich
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