darktable: darktable ( Photo Editor )
darktable:
darktable: Darktable is an open source photography workflow application and RAW
darktable: developer. A virtual lighttable and darkroom for photographers. It
darktable: manages your digital negatives in a database, lets you view them
darktable: through a zoomable lighttable and enables you to develop raw images
darktable: and enhance them. It does non-destructive edits by saving edit data 
darktable: in .xmp files, which gives it a big advantage over traditional
darktable: editors like Gimp etc.
darktable:
darktable: Homepage: http://www.darktable.org/