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TIFFCMP(1)                                                          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  com-
       pared 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), tiffcp(1), tiffmedian(1), libtiff(3TIFF)

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



libtiff                        November 2, 2005                     TIFFCMP(1)