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: GrayResponse-
       Curve, ColorResponseCurve, and ColorMap tags.  Data will not  be	 com-
       pared if any of the BitsPerSample, SamplesPerPixel, or ImageWidth val-
       ues are not equal.  By default, tiffcmp will terminate if  it  encoun-
       ters 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 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)

UNIX/Linux commands referenced on this page:

1. compare
2. file