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-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 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
TIFFReadScanline() function is used. An 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(3TIFF)
Libtiff library home page:
http://www.remotesensing.org/libtiff/