NAME

       jpegjudge - guess jpeg picture quality

SYNOPSIS

       jpegjudge [ -V ]

       jpegjudge [ -b ] file ...

DESCRIPTION

       Jpegjudge  reads each argument and attempts to guess the quality with which it was saved. Currently, only
       a rough indicator is calculcated, ranging from 0 (lowest quality) to 1000 (highest quality), an extension
       to other formats would be straightforward, but isn't planned.

       It can read all pictures the IJG jpeg library can read, i.e. normal and progressive jpeg's.

   OPTIONS
       -b     Display only quality indicator, suppress other information (filenames).

       -h, --help
              Display short summary of options.

       -V, --version
              Display version number and exit.

BUGS

       It  should  be  possible to judge pictures stored in non-lossy formats, too, since conversion to jpeg may
       influence the measurement.

       The quality indicator is non-linear, and could be much better.

       The algorithm to calculate the quality was made up in 10 minutes, after staring at various histograms.

ACKNOWLEDGEMENTS

       This program contains code from the IJG jpeg software.

                                     Jpegjudge - guess jpeg picture quality                         JPEGJUDGE(1)