* Christian Mandel <c.man...@gmx.net> [11-18-15 03:58]: > is it possible to write crop metadata (see > http://photo.stackexchange.com/questions/43893/how-to-store-tilt-rotation-and-crop-information-in-metadata, > > xmp parameters for crop values) instead of actually performing the crop? > I guess it is not a standard feature (at least I did not find it) but > maybe it is possible with lua? > > The background: I do a lot of design work with photographs from dt > (calendars, photo books, etc.). Therefore, the photographs have to fit > within given frames. When I crop in dt (e.g. in 2:3 format) and use it > in a 4:5 template, I have to crop again, which is often not possible due > to losing important image parts. For these situations it would be better > to be able to "add" some picture at the other edges. Therefore, I have > to go back into darktable, crop different, export again and reuse the > image, which is cumbersome.
Make yourself a "master" image, everything but the crop. Duplicate the "master" image and crop and export the dup. Now you have two copies of the same image in your database/library but only one "master" and an exported/cropped jpg and two xmp files, one for each. The dup of your master is only an entry in your library and an xmp file. Every time you need another, different crop, go back to the master and make another dup (a library entry and an xmp) and export it at the different crop. You may even be able to configure export to automagically assign a number or letter designation representing the image's crop ratio. -- (paka)Patrick Shanahan Plainfield, Indiana, USA @ptilopteri http://en.opensuse.org openSUSE Community Member facebook/ptilopteri http://wahoo.no-ip.org Photo Album: http://wahoo.no-ip.org/gallery2 Registered Linux User #207535 @ http://linuxcounter.net ------------------------------------------------------------------------------ _______________________________________________ Darktable-users mailing list Darktable-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-users
