Are you looking at a digital photo in its raw, original state — or has it been edited? Under normal circumstances this can be very hard to determine. But if you really need to know JPEGSnoop may be able to help. Just open your image and the program will examine its compression characteristics, compare these against a database of thousands of cameras and photo editors, and deliver its verdict.
So if your image matches the signature of a camera, it’s probably an original shot; if it matches a photo editor, it probably has been edited, or at least saved in an editor; and if the signature isn’t recognized then JPEGSnoop won’t be able to say (though you can add signatures to the database manually to improve its accuracy).
View the Original article
