On Sun, Jan 6, 2013 at 12:55 AM, johannes hanika <[email protected]> wrote: > 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).
I get that. But why does the temperature turn up differently if the rgb multipliers are the same? Regards, Pascal de Bruijn ------------------------------------------------------------------------------ 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
