On Mon, 04 Feb 2002, Lutz Müller wrote: > On Mon, 2002-02-04 at 15:04, Sven Neumann wrote: > >if it solves our problems and works for non-JPEG images too, I don't > >see any problem in adding such a dependency to gimp-1.3. > > EXIF information is specific to JPEG files. Therefore, editing and > storing EXIF information make sense with JPEG images only. Sure, you > could try to save/hide/convert it in other image formats, but this is > not the purpose of the EXIF specification.
EXIF is specific to JPEG files, but you find almost the same information in the TIFF/EP format. So we should try to have a generic solution for the GIMP, that is not limited to EXIF only. If you look at bug #56443 and have a look at the proposal for adding EXIF support to the PNG file format (http://pmt.sourceforge.net/exif/index.html), you will see a long table that describes how the individual fields can be mapped from one file format to the other.
That's why I wrote in my previous mail that all data should be saved in GIMP parasites, because that would allow each file plug-in to import/export the parts that are appropriate and discard or convert the rest. So we should be able to have something like this: Load JPEG/EXIF file -> GIMP parasites -> Save TIFF/EP file
-Raphael
