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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
       1988-2022, LibTIFF contributors

4.7				 Sep 11, 2024			    TIFFCMP(1)

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