Why RAWs instead of, say, TIFFs?

[guille2306 (Guillermo Rozas)]

@ggbutcher

That’s exactly what my hack software does. When I use either rawproc interactively or the command line img to create an ouput JPEG, TIFF, or PNG, the software stores the toolchain in the EXIF:ImageDescription. Then, rawproc has a special 'File → Open Source…" menu selection that, when you select, say, a proof JPEG with that information in ImageDescription, it’ll open the source file and re-apply the processing to put you at the starting point for subsequent work. You can either modify a tool that’s already in the chain, or add new tools anywhere in the chain.

darktable does the same if you enable the option to export processing history to JPG (it ends up in the XMP.darktable.history tag)