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This reverts commit eab89a627f.
# Conflicts:
# tools/unsupported/CMakeLists.txt
# tools/unsupported/tif_tools-unsupported_versioninfo.rc
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60 lines
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tiff2cmp
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========
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.. program:: tiffcmp
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Synopsis
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--------
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**tiffcmp** [ *options* ] *file1.tif* *file2.tif*
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Description
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-----------
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:program:`tiffcmp` compares the tags and data in two files created according
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to the Tagged Image File Format, Revision 6.0.
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The schemes used for compressing data in each file
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are immaterial when data are compared\-data are compared on
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a scanline-by-scanline basis after decompression.
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Most directory tags are checked; notable exceptions are:
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``GrayResponseCurve``, ``ColorResponseCurve``, and ``ColorMap`` tags.
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Data will not be compared if any of the ``BitsPerSample``,
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``SamplesPerPixel``, or ``ImageWidth`` values are not equal.
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By default, :program:`tiffcmp` will terminate if it encounters any difference.
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Options
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-------
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.. option:: -l
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List each byte of image data that differs between the files.
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.. option:: -z number
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List specified number of image data bytes that differs between the files.
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.. option:: -t
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Ignore any differences in directory tags.
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Bugs
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----
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Tags that are not recognized by the library are not
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compared; they may also generate spurious diagnostics.
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The image data of tiled files is not compared, since the :c:func:`TIFFReadScanline`
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function is used. An error will be reported for tiled files.
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The pixel and/or sample number reported in differences may be off
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in some exotic cases.
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See also
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--------
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:doc:`pal2rgb` (1),
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:doc:`tiffinfo` (1),
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:doc:`tiffcp` (1),
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:doc:`tiffmedian` (1),
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:doc:`/functions/libtiff` (3tiff)
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