hey, On Mon, Jan 14, 2013 at 7:55 AM, Sergey Astanin <[email protected]> wrote: > > Hi, > > finally I made profiles for Pentax K20D; I'm not sure I did them right, so > there are some questions: > > 1. My camera is set to Weak noise reduction for high ISO. I don't know if > it affects RAW (someone said on the list that it is the case for some Pentax > cameras).
we'll see how well the graphs match. sometimes it still kind of works. > 2. File format for noise profile images > > > open a terminal, go to the directory you just exported your images to. > > from there, type ... > > (http://www.darktable.org/2012/12/profiling-sensor-and-photon-noise/) > > OK, I understood it as 1) apply raw linear style, 2) export from raw. What > format should have I exported to? I tried exporting to 16-bit TIFF and > running gen-profiles on them. The profile seem to be usable. oh, .. yeah, that was probably text for the old make.sh. gen-profile works directly on the raw files. > I also tried running gen-profiles on the original raw files, but the > default base curve seems to be applied. The profile seems to be useful in > practice (I don't attach it). maybe you already had xmp sidecars created for those? be sure to start with a clean directory, only raw files in it. > 3. ISO steps > > I tried profiling every half-stop (100, 140, 200, 280, ...). Didn't notice > any problem with that yet. Is it ok to do so? should be fine, these values interpolate quite nicely. usually. modulo weird whitepoint issues for 1/3rd stops in the 5d mark iii for example. it's just interesting for us to get more data. > 4. When I enable `denoise (profiled)' module, some generic settings seem > to be applied. I have to select the right profile manually. Is it how the > module is supposed to work now? you can try your presets locally, without recompile. but if you submit them and we include them in the source, these will show up in the combobox, not as presets anymore. > Impressions: denoising seems to be too strong at high ISO (> 400), wavelet > denoising works better than nlmeans for me (produces less smearing, > preserves texture). cool :) wavelets are also faster to compute, potentially. cheers, jo > > Sergey > > > > I've linked 1 file to this email: > dt-noiseprofile-20130113.tar.gz(4.2 MB)Ubuntu > Onehttp://ubuntuone.com/5YPzilh7JOrvymeQQI2zIh > Mozilla Thunderbird makes it easy to share large files over email. > > > > ------------------------------------------------------------------------------ > Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, > MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current > with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft > MVPs and experts. ON SALE this month only -- learn more at: > http://p.sf.net/sfu/learnmore_123012 > _______________________________________________ > darktable-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/darktable-devel > ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122412 _______________________________________________ darktable-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-devel
