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openslide-quickhash1sum(1)       User Commands      openslide-quickhash1sum(1)




NAME

       openslide-quickhash1sum - Print OpenSlide quickhash-1 checksums



SYNOPSIS

       openslide-quickhash1sum [--help] [--version] slide...



DESCRIPTION

       Print  OpenSlide  quickhash-1  checksums  for one or more virtual slide
       files, in a format similar to sha256sum(1).

       quickhash-1 is a non-cryptographic, 256-bit  hash  of  a  subset  of  a
       slide's  data.   It uniquely identifies a particular virtual slide, but
       cannot be used to detect corruption or modification of the slide  file.



OPTIONS

       --help Display usage summary.


       --version
              Display version and copyright information.



EXIT STATUS

       openslide-quickhash1sum  returns 0 on success, 1 if a quickhash-1 could
       not be calculated, or 2 if the arguments are invalid.



BUGS

       quickhash-1 is not defined for all slide files supported by  OpenSlide.
       If a slide does not have a quickhash-1, "No quickhash-1 available" will
       be printed.



COPYRIGHT

       Copyright (C) 2007-2012 Carnegie Mellon University and others

       OpenSlide is free software: you can redistribute it  and/or  modify  it
       under the terms of the GNU Lesser General Public License, version 2.1
       <http://gnu.org/licenses/lgpl-2.1.html>.

       OpenSlide comes with NO WARRANTY, to the extent permitted by law.   See
       the GNU Lesser General Public License for more details.



SEE ALSO

       openslide-show-properties(1), openslide-write-png(1), sha256sum(1)



OpenSlide 3.4.1                   2012-02-24        openslide-quickhash1sum(1)

openslide 3.4.1 - Generated Mon Apr 27 19:51:27 CDT 2015
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