Hi! Under the hood this would be quite easy to implement. Not for 1.2, because it would violate string freeze.
Still I see two issues. First, I am not so convinced users can make a lot out of the single channels, e.g. when it comes to a and b of Lab. These channels - when translated into display format - will mostly be neutral gray with some lighter or darker areas. But of course YMMV. The second issue is our already quite cluttered GUI. If we want to offer this option we need to have another GUI element to activate single-channel display and we need some option to select which of the up to 14 single channels to show. Currently I can't imagine a way without making the GUI so complicated that it will shy away even the bravest newbie. Ulrich Am 04.03.2013 19:58, schrieb Alexander Wagner: > Hi! > > Just a suggestion. > > blendif() is pretty powerful, but at least to the uninitiated a bit > difficult to use as it requires to visualize the image decomposed to > it's channels to see where which ones to use and where to put the > sliders. One can work around with the colour picker of course but it's > quite a wilde guessing if a or R is a better choice e.g. > > At least to me it was always quite helpful to decompose an image in Gimp > to various channels as gray scale to see which one might give a good > mask for a potential blendif. (E.g. though there is a pretty nice Lab > sharpen plugin for the Gimp I tend to decompose, sharpen & blur and > recompose instead, as I have a better feeling for what's going on.) > > I think it would be a great help to those willing to learn if dt could > just display an images per channel, thus display the channel structure > by means of grayscale images. IMHO this would make an educated selection > of channels quite a bit easier if you're not used to see an L channel > instead of a full image. > > I'm not sure if this is easy to do though. > ------------------------------------------------------------------------------ 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_feb _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
