Am 03.09.2013 18:31, schrieb Alexander Rabtchevich: > Markus Jung wrote: >> Am 02.09.2013 21:35, schrieb Alexander Rabtchevich: >>> It has no sense. >> Of course it has. The problem is, to be really useful the lightness >> channel should be blended, too, but independent from the colour. The >> color adjustment blend mode is primary intended (at least as far as i >> know) to reduce the strength of the automatic color scaling of the tone >> curve module. > Let me describe the concrete use-case. I have a photo with a face I want > to adjust. So I use a mask to select the face, adjust tonal curve to > tune its tonal appearance and use _coloradjustment_ mode to decrease > color contrast scaling of _the_face_ . I guess it's natural. If no mask > is used the effect works as described. >
Please, please, don't make things more complicated than they are. As Markus has pointed out the *only* reason for coloradjustment is to tune down the automatic color scaling of a very minor number of modules. It's just a quick access option for those who think that the automatic color scaling is too strong. Only use coloradjustment mode in that specific use case (as also mentioned in the user manual). In all other cases you have all power to do what you want by using hand-tuned curves for the a and b channels. You can even make them linear if you just want to keep color unchanged. Then use whatever blend mode and mask to apply your curves to a certain image detail. Ulrich ------------------------------------------------------------------------------ Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58040911&iu=/4140/ostg.clktrk _______________________________________________ darktable-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-devel
