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TIFFCMP(1)                          LibTIFF                         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  com-
       pressing  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 differ-
       ence.

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)

AUTHOR
       LibTIFF contributors

COPYRIGHT
       1988-2023, LibTIFF contributors

4.5                              Nov 23, 2023                       TIFFCMP(1)

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