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tiffcmp(1)


NAME

   tiffcmp - compare two TIFF files

SYNOPSIS

   tiffcmp [ options ] file1.tif file2.tif

DESCRIPTION

   Tiffcmp  compares  the  tags and data in two files created according to
   the Tagged Image File Format,  Revision  6.0.   The  schemes  used  for
   compressing   data   in   each   file  are  immaterial  when  data  are
   compared-data  are  compared  on  a  scanline-by-scanline  basis  after
   decompression.   Most  directory  tags  are checked; notable exceptions
   are: GrayResponseCurve, ColorResponseCurve, and  ColorMap  tags.   Data
   will  not  be compared if any of the BitsPerSample, SamplesPerPixel, or
   ImageWidth values are not equal.  By default, tiffcmp will terminate if
   it encounters any difference.

OPTIONS

   -l     List each byte of image data that differs between the files.

   -z number
          List  specified  number of image data bytes that differs between
          the files.

   -t     Ignore any differences in directory tags.

BUGS

   Tags that are not recognized by the library are not compared; they  may
   also generate spurious diagnostics.

   The   image   data   of   tiled   files  is  not  compared,  since  the
   TIFFReadScanline() function is used.  An error  will  be  reported  for
   tiled files.

   The  pixel  and/or  sample number reported in differences may be off in
   some exotic cases.

SEE ALSO

   pal2rgb(1), tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3TIFF)

   Libtiff library home page: http://www.simplesystems.org/libtiff/



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