87 lines
2.7 KiB
Groff
87 lines
2.7 KiB
Groff
.\"
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.\" Copyright (c) 1988-1997 Sam Leffler
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.\" Copyright (c) 1991-1997 Silicon Graphics, Inc.
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.\"
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.\" Permission to use, copy, modify, distribute, and sell this software and
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.\" its documentation for any purpose is hereby granted without fee, provided
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.\" that (i) the above copyright notices and this permission notice appear in
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.\" all copies of the software and related documentation, and (ii) the names of
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.\" Sam Leffler and Silicon Graphics may not be used in any advertising or
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.\" publicity relating to the software without the specific, prior written
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.\" permission of Sam Leffler and Silicon Graphics.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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.\"
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.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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.\" OF THIS SOFTWARE.
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.\"
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.if n .po 0
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.TH TIFFCMP 1 "November 2, 2005" "libtiff"
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.SH NAME
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tiffcmp \- compare two
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.SM TIFF
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files
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.SH SYNOPSIS
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.B tiffcmp
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[
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.I options
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]
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.I "file1.tif file2.tif"
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.SH DESCRIPTION
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.I Tiffcmp
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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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.IR GrayResponseCurve ,
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.IR ColorResponseCurve ,
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and
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.IR ColorMap
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tags.
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Data will not be compared if any of the
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.IR BitsPerSample ,
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.IR SamplesPerPixel ,
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or
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.I ImageWidth
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values are not equal.
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By default,
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.I tiffcmp
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will terminate if it encounters any difference.
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.SH OPTIONS
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.TP
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.B \-l
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List each byte of image data that differs between the files.
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.TP
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.BI \-z " number"
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List specified number of image data bytes that differs between the files.
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.TP
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.B \-t
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Ignore any differences in directory tags.
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.SH BUGS
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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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.PP
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The image data of tiled files is not compared, since the
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.I TIFFReadScanline()
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function is used. An error will be reported for tiled files.
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.PP
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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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.SH "SEE ALSO"
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.BR pal2rgb (1),
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.BR tiffinfo (1),
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.BR tiffcp (1),
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.BR tiffmedian (1),
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.BR libtiff (3TIFF)
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.PP
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Libtiff library home page:
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.BR http://www.simplesystems.org/libtiff/
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