jpegjudge - determine which of two given jpegs (same size) is the original

Distribution: Debian 8 (Jessie)
Repository: Debian Main amd64
Package name: jpegjudge
Package version: 0.0.2
Package release: 2.1+b1
Package architecture: amd64
Package type: deb
Installed size: 31 B
Download size: 17.98 KB
Official Mirror:
Try to determine which same picture was saved at a higher quality, even if the picture was saved at low quality and later at a higher quality. By a statistical analysis over the quantization table stored in a jpeg one could probably deduce the quality which the picture was saved (i.e. this particular save), but it in no way says anything about the picture quality itself (i.e. whether it has ever been saved at lower quality before since its creation). For example, one might have saved a jpeg picture at low quality, and later saved at a higher quality, yet the information lost during the first save can't be restored.



    Source package: jpegjudge

    Install Howto

    1. Update the package index:
      # sudo apt-get update
    2. Install jpegjudge deb package:
      # sudo apt-get install jpegjudge


    • /usr/bin/jpegjudge
    • /usr/share/doc/jpegjudge/NEWS.gz
    • /usr/share/doc/jpegjudge/README
    • /usr/share/doc/jpegjudge/README-jpeg6a.gz
    • /usr/share/doc/jpegjudge/changelog.Debian.amd64.gz
    • /usr/share/doc/jpegjudge/changelog.Debian.gz
    • /usr/share/doc/jpegjudge/copyright
    • /usr/share/man/man1/jpegjudge.1.gz


    2014-09-29 - Ondřej Surý <> jpegjudge (0.0.2-2.1) unstable; urgency=medium * Non-maintainer upload * Change B-D to libjpeg-dev to finish the transition to libjpeg-turbo (Closes: #763476)

    2012-03-23 - Jari Aalto <> jpegjudge (0.0.2-2) unstable; urgency=low [ Jari Aalto ] * debian/control - (Build-Depends): Rm dpkg-dev; not needed with debhelper 9. Add autoconf. - (Standards-Version): Update to * debian/copyright - Update to format 1.0. * debian/docs - Remove judge.txt; duplicate of manual page. * debian/rules - Update to dh(1). - Use hardened build flags * debian/ - Delete; no longer used. [ tony mancill ] * debian/control - (Build-Depends): Add automake

    2010-03-05 - Jari Aalto <> jpegjudge (0.0.2-1) unstable; urgency=low * Initial release (Closes: #572608).