On jeudi 7 septembre 2017 19:25:18 CEST darkta...@911networks.com wrote: > Hi, > > DT 2.2.5. > > I'm looking to open some shadows. > > There's the fill module and the tone curve, but I'd like more > control, I only want to open only some shadows, like faces. > > Any good parametric tutorial? > > I've been messing around with parametric control, but the keyword > here is "messing"... > > Ideally, I envision selecting a shadow and setting the exposure for that > shadow darkness with a blend mode of screen and having multiple exposure > entries for different shadows with some masking.
Not sure parametric masking would do what you want, like opening shadows just in faces. While a parametric mask could help there, you'll need to combine it with a drawn mask, with is a whole separate problem. The reason is that parametric masks select according to the value for one channel (which channels are available depends on the module, some are based on Lab, others on RBG). And that rarely corresponds to a specific zone in your image (even something apparently simple as selection a cloudy sky can have some complications if there's e.g. a reflection in a lake). Of course, you can try to combine several channels, but there is no guarantee that there is a combination that selects only the zone you want. So far, I have to limit myself to one channel in the parametric mask, and perhaps a simple drawn mask, combining those two in exactly the way you want is probably very logical, but not intuitive. And I haven't found a good tutorial explaining how to attack this kind of situations. Remco ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
