On Sat, Jan 9, 2016 at 1:49 AM, gersch...@gmail.com <gersch...@gmail.com> wrote: >>>>>> blue colors in the raw files of my Canon 700D are turned into much >>>>>> darker blue or purple >>>>>> in darktable when applying the usual corrections (sharpen, orientation, >>>>>> base curve). The >>>>>> jpg files produced by the camera show a blue which is much closer to the >>>>>> real color. >>>>>> Is this a known problem? What Is the best way to correct this? I have >>>>>> the impression > that >>>>>> this does not occur in rawtherapee. >>>>> >>>>> Yeah, this problem has been present for quite some time. I see it in >>>>> shots taken with > my Canon 60D >>>>> but not in those taken with my 5d3. It's cased by the input color >>>>> profile; try > changing the profile >>>>> from "enhanced color matrix" to "standard color matrix" or even "rec2020". >>>>> >>>>> The ultimate solution is to profile your camera using a color target: >>>>> >>>>> https://encrypted.pcode.nl/blog/2010/06/28/darktable-camera-color-profiling/ >>>>> >>>>> Darktable used to accept these custom profiles for inclusion in the main >>>>> project, but > this is >>>>> currently not happening pending a rework on the way the input end of the >>>>> pipe works > (though I don't >>>>> remember the details). None of this stops you using your own custom >>>>> profile, though. >>>> >>> >>> Thanks for your information. I've tested different input color profiles but >>> I still have >>> the impression the blue is too saturated. >>> Is there someone with a Canon camera who would share their optimised color >>> profile or >>> darktable style? >>Have you already tried setting "gamut clipping" in "input color >>profile" to "linear Rec2020 RGB"? > >>https://www.darktable.org/usermanual/ch03s04s03.html.php#d0e7524 > >>> Thanks also for the hint to try RawStudio profiles. > >>> Regards, Gerd >>Roman > > Hi, > yes, I tried Rec2020 RGB with gamut clipping but now all colors look rather > pale. I think > that the colors in the standard color matrix look good except the blue being > too dark. Just to be sure: i meant: in "input color profile" module, set "gamut clipping" to "linear Rec2020 RGB". Not: in "input color profile" module, set "profile" to "linear Rec2020 RGB".
> Regards, Gerd Roman. > > ------------------------------------------------------------------------------ > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 > _______________________________________________ > Darktable-users mailing list > Darktable-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/darktable-users ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Darktable-users mailing list Darktable-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-users
