On Sun, Jan 6, 2013 at 12:48 PM, Jose Carlos Garcia Sogo <[email protected]> wrote: > On Sat, Jan 5, 2013 at 5:38 PM, Pascal de Bruijn <[email protected]> wrote: >> On Sat, Jan 5, 2013 at 5:04 PM, Pascal Obry <[email protected]> wrote: >>> >>> Pascal, >>> >>>> You mean when copying the history stacks? Please elaborate a bit? >>> >>> Yes, copying the history stack. >>> >>>> White balance is an absolute corrrection IIRC, not relative... so it >>>> naturally doesn't transfer well between different images... >>> >>>> So for generic/artistic color correction, I'd highly recommend the >>>> color correction plugin (which has a warming filter preset for >>>> example). >>> >>> I'm not looking at an artistic look, really correcting the white balance >>> (as done in LR) to a set of pictures that are taken at the same time >>> under the same light. I correct the first one, when I'm pleased with the >>> WB correction I want to paste this same correction to other images. >> >> Ok. Do the numbers really turn up differently? >> >> I guess we should wait for hanatos to comment then :s > > He will explain better, but to give some hint, the problem is that we > are normalizing the values to 5000, instead of calculating the WB > value of the image as shot, so the WB point is relative to each image. > Therefore, when you copy a value from one image to other, the value > doesn't really mean the same for the two. > > IMHO, this has to be changed to show the actual "as shot" WB point value.
see http://darktable.org/redmine/issues/9012 that code is as it is mainly because it was about the first module dt had (code originates from gegl). in hindsight it would have been better to copy it from ufraw i guess. it's no big deal to change it though (once we know what we want), the core operates on rgb coefficients, the temperature is just converted for the gui (database/history stacks remain untouched). -jo ------------------------------------------------------------------------------ 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_122912 _______________________________________________ darktable-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-devel
