Re: [darktable-dev] denoise profile non local means: neighborhood parameter

Hi, The problem of a 2-passes denoising method involving 2 differents algorithms, the later applied where the former failed, could be the grain structure (the shape of the noise) would be different along the picture, thus very unpleasing. I thought maybe we could instead create some sort of

Re: [darktable-dev] denoise profile non local means: neighborhood parameter

hi, that doesn't sound like a bad idea at all. for what it's worth, in practice the nlmeans doesn't let any grain at all through due to the piecewise constant prior that it's based on. well, only in regions where it finds enough other patches that is. in the current implementation with a radius

[darktable-dev] Re: denoise profile non local means: neighborhood parameter

Le mercredi 13 juin 2018, johannes hanika a écrit : > hi, > > that doesn't sound like a bad idea at all. for what it's worth, in > practice the nlmeans doesn't let any grain at all through due to the > piecewise constant prior that it's based on. well, only in regions > where it finds enough

Re: [darktable-dev] Re: denoise profile non local means: neighborhood parameter

Le 13/06/2018 à 14:48, rawfiner a écrit : > > Le mercredi 13 juin 2018, johannes hanika > a écrit : > > hi, > > that doesn't sound like a bad idea at all. for what it's worth, in > practice the nlmeans doesn't let any grain at all through due to the >

[darktable-dev] Re: denoise profile non local means: neighborhood parameter

Le mercredi 13 juin 2018, Aurélien Pierre a écrit : > > >> On Thu, Jun 14, 2018 at 12:23 AM, Aurélien Pierre >> wrote: >> > Hi, >> > >> > The problem of a 2-passes denoising method involving 2 differents >> > algorithms, the later applied where the former failed, could be the >> grain >> >