Mercurial imgtrack extension
Programmers have been using version control systems for decades to record/log/merge/revert changes in their source code. Photographers don't have a similar tool, although they also have to wrangle with many different versions of one photo:
- a photo is typically shot in a Camera RAW format, a kind of digital negative, that needs automatic or manual processing to produce a visible image on the screen
- the edited Camera RAW photo has to be saved in another format (e.g. Photoshop PSD or JPEG), because RAW is basically a read-only format. Often multiple versions of one image are saved to test different effects and filters.
- then the edited photos are published on photosharing sites or online photo galleries. To increase the upload speed, optimized JPEG versions of the source files are created. The gallery software might create additional versions of the image (e.g. thumbnails and smaller previews).
This multifile-workflow brings a few problems: