On Mon, Feb 4, 2013 at 9:57 AM, Russell Edwards <[email protected]> wrote: > Hi, > > I have some digital photos of faded old colour prints. The R, G, B > histograms are squashed and shifted with respect to eachother due to the > different fading characteristics of the different pigments in the paper. > > It seems to me the best way to fix what I am seeing would be if I could > apply the exposure or levels module to the R, G, B modules > independently. > > What's the closest feature in darktable to achieve such a thing? > > I can kind of do it dragging the histogram but that is extremely slow > and jerky, and I can't find which module actually implements that > processing, nor documentation of it, so am hesitant to use it.
http://www.darktable.org/usermanual/ch03s04s05.html.php#idp619488 > I can partly do what I need by playing with channel mixer or color > correction, but it is not flexible enough to really do what I need to > do, which to first order is move the left end of the red histogram to > the left and the right end of the red histogram to the right. > > Thanks in advance for any help you can offer. > > Russell > > > ------------------------------------------------------------------------------ > Everyone hates slow websites. So do we. > Make your web apps faster with AppDynamics > Download AppDynamics Lite for free today: > http://p.sf.net/sfu/appdyn_d2d_jan > _______________________________________________ > Darktable-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/darktable-users ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_jan _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
