Similar, I also fall back on the tone curve to manually set luminance and ab color curves (Lab tool). My impression is that the basecurve works only well for 'proper' exposed skin luminance. In other cases the tonecurve seems more appropiate. Also you might try different color matrices for your camera. Either by creating them by calibration or the Adobe dngprofileeditior or downloading free profiles generated by others from the internet.
In general for faces I use the color zones module and desat the reds/purple for faces. Colorshift can be done there too instead of using a special color matrix. Reading about dcp vs icc colormatrices it seems dcp allows for a profile that changes with the color temperature and is well specified at which point it should be applied. As it is an openstandard it would be nice to get support in it for DT. From a spectral point of view having a color profile that changes with the white balance temperature seems logical. Best, Gert On Wed, May 7, 2014 at 4:44 PM, Paul Glad Mihai <[email protected]> wrote: > Hello Eildert, > > I have the same problem. Sometimes I just turn off the base curve if I > don't like the result and work from there. I usually increase exposure, > lightness, contrast and then use the tone curve to put in more contrast. > Usually this results in a significant loss of color. To bring back the > color I use another tone curve instance and increase the slope of the a > and b channels, by moving the edges of the lines towards the middle. I > usually do it pretty drastically and then reduce the overlay: normal to > something like 40% or whatever suits me. > > The worst part, however, are blue tones. I have a Canon 60D and blues > just appear purple and overblown when using the base curve. I switched > to the alternative for canon but it's not much better. The red faces on > white people are also rather strong. > > Regards, > Glad > > On 05.05.2014 21:40, Eildert Groeneveld wrote: >> Dear Marie-Noëlle >> >> what you describe as 'lobster' I have named 'hypertonic' people. >> Whatever we call it, it seems clear that we have an issue in DT as far >> as skin colors go. In my case this is a Leica M9 and red seems to be way >> to intense. This means, that I need to fiddle with each image with >> people on them (there is a Leica like Base curve alright). >> >> My question is: how do you handle this situation when you switched of >> the basecurve. Do you use the Tonecurve instead? And if you do, hwo did >> you create it? >> >> maybe I can learn from you. >> >> greetings >> >> Eildert >> >> On So, 2013-08-04 at 22:10 +0200, Marie-Noëlle Augendre wrote: >>> I said a few days ago that the basic curve gives lobster skin to >>> people. I'm now working on a whole batch of landscapes photographies, >>> and for them too the colors are very wrong, with greens and yellows >>> completely oversaturated. >>> In both cases, I have to deactivate the basic curve in order to start >>> working on a not too bad picture. When doing so, in both cases, the >>> histogram comes way too much on the left, and I need to adjust the >>> exposition for every picture... to the point I'm wondering whether the >>> basic curve could be supposed to fix a wrong exposition treatment when >>> demosaicing. >>> >>> At shooting time, I take care of the exposition so the histogram is on >>> the right side, sometimes blowing up the higlights. I definitely don't >>> understand why/how I get an underexposed picture when I import it in >>> Darktable and deactivate the basic curve. >>> >>> Marie-Noëlle >>> >>> -- >>> >>> >>> De l'AIgoual à l'Aubrac, un voyage photographique en Cévennes et >>> Lozère >>> Un livre à offrir ou à s'offrir, en souscription jusqu'au 31 août >>> 2013. >>> Cliquer sur l'image ci-dessus ou ce lien pour en savoir plus >>> >>> ------------------------------------------------------------------------------ >>> Get your SQL database under version control now! >>> Version control is standard for application code, but databases havent >>> caught up. So what steps can you take to put your SQL databases under >>> version control? Why should you start doing it? Read more to find out. >>> http://pubads.g.doubleclick.net/gampad/clk?id=49501711&iu=/4140/ostg.clktrk >>> _______________________________________________ >>> Darktable-users mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/darktable-users >> > > -- > Sent from my iTooth. Get your own teeth to send Emails under www.itooth.com > > ------------------------------------------------------------------------------ > Is your legacy SCM system holding you back? Join Perforce May 7 to find out: > • 3 signs your SCM is hindering your productivity > • Requirements for releasing software faster > • Expert tips and advice for migrating your SCM now > http://p.sf.net/sfu/perforce > _______________________________________________ > Darktable-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/darktable-users -- Panta Rhei -- Life is a dance ------------------------------------------------------------------------------ Is your legacy SCM system holding you back? Join Perforce May 7 to find out: • 3 signs your SCM is hindering your productivity • Requirements for releasing software faster • Expert tips and advice for migrating your SCM now http://p.sf.net/sfu/perforce _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
