On Thu, 8 Dec 2016 21:04:03 +0100, Saint Germain wrote: > On Thu, 8 Dec 2016 18:44:30 +0100, Saint Germain <saint...@gmail.com> > wrote : > >> On Thu, 8 Dec 2016 15:14:02 +1100, Gary Parkinson >> <gpar3...@bigpond.net.au> wrote : >> >> > Try using the Darktable style "Denoise_chinese" >> > >> > https://dtstyle.net/ >> > >> >> This is actually quite nice ! >> Here is the result I have got without touching anything: >> ttp://dl.free.fr/jisaMUzIg >> >> We still have a slight luminance problem, but I think we are on the >> right track. >> >> Thanks a lot > > I managed to get (without too much effort) a quite good result about > the noise (xmp+jpg): > http://dl.free.fr/sn4ZBHVlY > http://dl.free.fr/b1UIskws2 > > Combination of "Denoise_chinese" + "RAW denoise". > > It seems that it is even slightly better than LightRoom and > RawTherapee ! > > Now I have to correct the color and exposure (the color seems to be OK > now but the image is too dark, but when I increase the exposure, the > colors become wrong, something strange is going on).
I still get better results with RawTherapee than with Denoise_chinese + RAW denoise (this is current git with both). And of course RAW denoise won't work on JPEGs at all. Compare: https://rlk.smugmug.com/Photography/DarktableRawTherapee/i-9qmRW2X (darktable, Denoise_chinese) https://rlk.smugmug.com/Photography/DarktableRawTherapee/i-Nkfjxq6 (darktable, Denoise_chinese + raw denoise) https://rlk.smugmug.com/Photography/DarktableRawTherapee/i-D759Zr8 (rawtherapee, parameters as specified in the caption) Note in both photos processed with darktable that there's a strong yellow cast in the skintone shadows, under her hair. That color cast is completely absent in the shot processed with rawtherapee. Rawtherapee with default chrominance noise reduction alone -- no other processing -- does have the usual grain-type noise, but the chrominance component is completely cleaned up with no color cast or shift. Luminance takes a bit more work, but it's not that hard to get smooth tones while retaining detail. I have not been able to get anywhere close to that with darktable; I'd really like to, since I otherwise prefer it. -- Robert Krawitz <r...@alum.mit.edu> *** MIT Engineers A Proud Tradition http://mitathletics.com *** Member of the League for Programming Freedom -- http://ProgFree.org Project lead for Gutenprint -- http://gimp-print.sourceforge.net "Linux doesn't dictate how I work, I dictate how Linux works." --Eric Crampton ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
