Nothing that I have come across
There is a plugin that does something like that. Probably others.
http://registry.gimp.org/node/28647and
http://www.arakne.es/en/dessign/gimp-pl ... h-updated/Not perfect but it is quick.
here I adjusted the source layer orientation, added a little 'spot' to prevent an autocrop
I am no expert with this plugin, so I might be missing something there.
dialog looks like this:
http://i.imgur.com/7CsOUnY.jpgresult like this:
http://i.imgur.com/WfKQNA2.jpg Set to generate a layer group. The source layer is bottom left.