16

Some time ago, I found a piece of software that would provide a good guess on the software/algorithm used to save a JPEG.

If I recall correctly, it would analyze something like the compression artifacts and compare it against a known database. The result allowed to know if the JPEG was a result of specific cameras (ie: Canon Powershot A560) or image processing software (ie: Photoshop CS 8.0). Note that it would not read exif information.

What software was this?

Is it still around?

34

Try JPEGSnoop:

JPEGsnoop is a detailed JPEG image decoder and analysis tool. It reports all image metadata and can even help identify if an image has been edited.

As explained on the JPEGSnoop webpage:

One of the latest features in JPEGsnoop is an internal database that compares an image against a large number of compression signatures. JPEGsnoop reports what digital camera or software was likely used to generate the image.
  • 17
    Feel free to mark this as the correct answer. – user31502 Dec 10 '15 at 19:19
1

You can also use Amped Authenticate, which has a richer and user customizable database. It is not a free software, but a professional tool used by law enforcement and forensic labs worldwide. (Disclaimer: I am the company CEO and founder.)

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.