the whitepoint in cameras.xml for this camera is overly conservative and should be lowered quite a bit. if i set it manually to 0.796 in the highlight reconstruction module, i get:
http://picpaste.com/img_0001-9Nd40hrz.jpg http://picpaste.com/img_0002-hqTB2bvP.jpg (full processing details in the xmp in the jpg) j. On Fri, Feb 22, 2013 at 2:06 PM, Henrik Andersson <[email protected]> wrote: > 2013/2/22 johannes hanika <[email protected]>: >> On Fri, Feb 22, 2013 at 1:22 PM, Julian J. M. <[email protected]> wrote: >>> Hightlight reconstruction in darktable seems to just clip the values, >> >> not true. >> > > is it broken ? feels like it... playing with the TO's raw file. > >>> so >>> that the color turns white (or gray if you keep lowering it)... But it >>> looses much information that's there. Usually it's the green channel what >>> gets overexposed, but knowing the aproximated tone of the area, using the >>> red and blue channels, it should be possible to reconstruct much of the >>> missing information. >>> >>> That's what Rawtherapee seems to have implemented: >>> http://code.google.com/p/rawtherapee/issues/detail?id=780 >>> There's a patch there... not sure how hard would it be to port it to >>> darktable. >>> >>> Julian. >>> >>> >>> On Thu, Feb 21, 2013 at 10:39 PM, johannes hanika <[email protected]> wrote: >>>> >>>> yes, what simon said. there are two things i would try, one is >>>> exposure, the other is adjust the basecurve to something a little >>>> lower in the bright regions at least (or try the `dark contrast' one >>>> and pull down the right end some more). you first need to get the >>>> highlights down < 1.0 before you can actually see the effect of >>>> reconstruction. >>>> >>>> -jo >>>> >>>> On Fri, Feb 22, 2013 at 11:36 AM, Simon Spannagel <[email protected]> wrote: >>>> > Hi Hans Petter, >>>> > >>>> > have you tried to adjust the exposure in darktable? To me it looks a bit >>>> > like the details should be there in general but the areas are still >>>> > overexposed since both dt pictures are much brighter in general. >>>> > >>>> > Simon >>>> > >>>> > >>>> > Am 21.02.2013 23:29, schrieb Hans Petter Birkeland: >>>> >> Hi, >>>> >> I'm testing out Darktable and Rawtherapee at the moment to see which >>>> >> one >>>> >> of them I will use in the future. I must say that Darktable wins in >>>> >> every respect but one: Highlight reconstruction. I find that >>>> >> Rawtherapee >>>> >> is capble of recovering much more detail from overexposed highlights. >>>> >> >>>> >> Here are some examples: >>>> >> https://www.dropbox.com/sh/s15m6zokz2ksugb/UGt6o64Lj9 >>>> >> >>>> >> The method I used in Darktable was Reconstruct in LCh, and in >>>> >> Rawtherapee I used Color Propagation. >>>> >> >>>> >> Any idea why Darktable can't find what is actually there? The Color >>>> >> Propagation is quite slow on my ancient system, but the result is so >>>> >> much better. Any chance that Darktable will do this in the future? >>>> >> >>>> >> >>>> >> My system: >>>> >> Linux Mint 13, 32 bit >>>> >> Darktable 1.1.3 >>>> >> Rawtherapee 3.0.0.6 >>>> >> >>>> >> >>>> >> Thanks, >>>> >> Hans Petter Birkeland >>>> >> >>>> >> >>>> >> >>>> >> ------------------------------------------------------------------------------ >>>> >> Everyone hates slow websites. So do we. >>>> >> Make your web apps faster with AppDynamics >>>> >> Download AppDynamics Lite for free today: >>>> >> http://p.sf.net/sfu/appdyn_d2d_feb >>>> >> >>>> >> >>>> >> >>>> >> _______________________________________________ >>>> >> Darktable-users mailing list >>>> >> [email protected] >>>> >> https://lists.sourceforge.net/lists/listinfo/darktable-users >>>> >> >>>> > >>>> > >>>> > ------------------------------------------------------------------------------ >>>> > Everyone hates slow websites. So do we. >>>> > Make your web apps faster with AppDynamics >>>> > Download AppDynamics Lite for free today: >>>> > http://p.sf.net/sfu/appdyn_d2d_feb >>>> > _______________________________________________ >>>> > Darktable-users mailing list >>>> > [email protected] >>>> > https://lists.sourceforge.net/lists/listinfo/darktable-users >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> Everyone hates slow websites. So do we. >>>> Make your web apps faster with AppDynamics >>>> Download AppDynamics Lite for free today: >>>> http://p.sf.net/sfu/appdyn_d2d_feb >>>> _______________________________________________ >>>> Darktable-users mailing list >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/darktable-users >>> >>> >>> >>> >>> -- >>> http://www.julianmenendez.es >> >> ------------------------------------------------------------------------------ >> Everyone hates slow websites. So do we. >> Make your web apps faster with AppDynamics >> Download AppDynamics Lite for free today: >> http://p.sf.net/sfu/appdyn_d2d_feb >> _______________________________________________ >> Darktable-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/darktable-users ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
