tiffcmp - phpMan

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-scan-
       line basis after decompression.  Most directory tags are  checked;  notable  excep-
       tions 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 gener-
       ate spurious diagnostics.

       The image data of tiled files is not compared, since the  TIFFReadScanline()  func-
       tion 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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