On Sat, 10 Mar 2018 17:04:45 +0100, David Vincent-Jones wrote: > When I apply the 'denoise (profiled)' onto a fairly raw image the > results, on my data, look quite acceptable. I have been trying to see > which modules that I am using are creating more noise than others. > > In another test I have used the para. mask to eliminate some processing > from sky areas ... it is a bit tedious but it appears to help. I still > feel that the blue is the trouble-maker.
Tedious is something I cannot abide when I'm processing a few hundred game photos (much less 3 weeks ago, when I had 600 frames). I need the most efficient workflow I can get. It's already wasteful to me that I can't simply hit space to move to the next photo and be able to crop right away; I need to click on the crop settings to be able to crop. For my use case, I don't need absolute elimination of noise, but I like to cut down the noise some for the very high ISO settings I use. If I were able to shoot at ISO 1600 I wouldn't even both bother with NR at all. But I don't want artifacts or complete removal of detail. If I didn't have an alternative I'd accept the noise. > On 03/10/2018 04:56 PM, Robert Krawitz wrote: >> On Sat, 10 Mar 2018 16:44:24 +0100, David Vincent-Jones wrote: >>> Your examples interest me since they are shown on a blue subject. My >>> experience with a fully profiled sensor is that the 'basic' Denoise >>> (profiled) works quite well by itself EXCEPT for blue sky areas. >>> >>> My sky areas tend to form into rosette clumps whenever some reasonable >>> degree of processing is applied. It has led me to believe that it is the >>> blue color that is causing the greatest problem. >> >> That's not my experience -- I'm seeing clumps like this in plenty of >> other places. -- 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
