Hello Ary, If i denoise your CR2 using the settings in your screenshot, the image looks like your export result. To judge the denoised result you need to zoom in to 1:1. Otherwise the image is downsampled before, which makes the image look different after denoising. For the same reason you need to enable high quality resampling to get comparable export results.
Try to reduce the non-local-means denoising to a strength of 1, this will remove at most all luminance noise while preserving the most details. Maybe you can use conditional blending (blend if) to apply a much stronger denoising to the sky to remove the lightness pattern noise. Regards, Markus Am 09.06.2013 08:46, schrieb ary brami: > Pascal, Marcus, everybody, hi ! > > First of all thanks for your answers, > > I tried what you wrote both of you, I'm sorry but doesen't change > nothing > to understand, here is my screen capture, on the left side, the picture > open in the darkroom afer profiled noise reduction, on the left the > picture after exportation with high quality resampling... > > > Any idea ? > > Ary > > Le samedi 08 juin 2013 à 22:49 +0200, Markus Jung a écrit > > : > Enable high quality resampling in the core options. This will make your > export incredible slow but the denoising results are the same as in the > darkroom. > > Regards, > Markus > > Am 08.06.2013 22:34, schrieb brami ary: >> Hi everybody >> >> I'm trying to post process an image with LOT of noise. >> The profiled noise reductions used as describe in the manual seems to > give the best results. >> Indeed, in the darkroom, it is good. But one back in the lightroom, on > even worse when I export the picture in jpg, the result is very bad. lot > more blur. >> Someone as an idea ? >> I'm trying for 2 days to denoise this picture, but the result is not > satifiing at all. >> >> If someone, here is the link for the RAW > file :https://docs.google.com/file/d/0By3GbSwCjcrKQ2t3d1NyNXlHREk/edit?pli=1 >> >> thanks a lot >> >> Ary >> >> >> >> > ------------------------------------------------------------------------------ >> How ServiceNow helps IT people transform IT departments: >> 1. A cloud service to automate IT design, transition and operations >> 2. Dashboards that offer high-level views of enterprise services >> 3. A single system of record for all IT processes >> http://p.sf.net/sfu/servicenow-d2d-j >> >> >> >> _______________________________________________ >> Darktable-users mailing list >> Darktable-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/darktable-users >> > ------------------------------------------------------------------------------ How ServiceNow helps IT people transform IT departments: 1. A cloud service to automate IT design, transition and operations 2. Dashboards that offer high-level views of enterprise services 3. A single system of record for all IT processes http://p.sf.net/sfu/servicenow-d2d-j _______________________________________________ Darktable-users mailing list Darktable-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-users
