tiffcmp



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  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 TIFFReadScan-
       line() 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), tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3)



                              September 26, 1994                    TIFFCMP(1)

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