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 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  dif-
       ference.

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

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

       -t     Ignore any differences in directory tags.

BUGS
       Tags  that  are not recognized by the library are not com-
       pared; they may also generate spurious diagnostics.

       The image data of tiled files is not compared,  since  the
       TIFFReadScanline()  function  is  used.   A  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.remotesens-
       ing.org/libtiff/



libtiff                  November 2, 2005              TIFFCMP(1)