NAME
tiffcp - copy (and possibly convert) a TIFF file
SYNOPSIS
tiffcp [ options ] src1.tif ...
srcN.tif dst.tif
DESCRIPTION
tiffcp combines one or more files
created according to the Tag Image File Format, Revision 6.0 into a
single TIFF file. Because the output file
may be compressed using a different algorithm than the input files,
tiffcp is most often used to convert between different
compression schemes.
By default, tiffcp will copy all the understood tags in a
TIFF directory of an input file to the
associated directory in the output file.
tiffcp can be used to reorganize the storage
characteristics of data in a file, but it is explicitly intended to
not alter or convert the image data content in any way.
OPTIONS
- -b image
- subtract the following monochrome image from all others
processed. This can be used to remove a noise bias from a set of
images. This bias image is typically an image of noise the camera
saw with its shutter closed.
- -B
- Force output to be written with Big-Endian byte order. This
option only has an effect when the output file is created or
overwritten and not when it is appended to.
- -C
- Suppress the use of ``strip chopping'' when reading images that
have a single strip/tile of uncompressed data.
- -c
- Specify the compression to use for data written to the output
file: none for no compression, packbits for PackBits
compression, lzw for Lempel-Ziv & Welch compression,
jpeg for baseline JPEG compression, zip for Deflate
compression, g3 for CCITT Group 3 (T.4) compression, and
g4 for CCITT Group 4 (T.6) compression. By default
tiffcp will compress data according to the value of the
Compression tag found in the source file.
- The CCITT Group 3 and Group 4
compression algorithms can only be used with bilevel data.
- Group 3 compression can be specified together with several
T.4-specific options: 1d for 1-dimensional encoding,
2d for 2-dimensional encoding, and fill to force each
encoded scanline to be zero-filled so that the terminating EOL code
lies on a byte boundary. Group 3-specific options are specified by
appending a ``:''-separated list to the ``g3'' option; e.g. -c
g3:2d:fill to get 2D-encoded data with byte-aligned EOL codes.
- LZW compression can be specified
together with a predictor value. A predictor value of 2
causes each scanline of the output image to undergo horizontal
differencing before it is encoded; a value of 1 forces each
scanline to be encoded without differencing. LZW-specific options
are specified by appending a ``:''-separated list to the ``lzw''
option; e.g. -c lzw:2 for LZW
compression with horizontal differencing.
- -f
- Specify the bit fill order to use in writing output data. By
default, tiffcp will create a new file with the same fill
order as the original. Specifying -f lsb2msb will force data
to be written with the FillOrder tag set to LSB2MSB, while -f msb2lsb will force data to be
written with the FillOrder tag set to MSB2LSB.
- -l
- Specify the length of a tile (in pixels). tiffcp
attempts to set the tile dimensions so that no more than 8
kilobytes of data appear in a tile.
- -L
- Force output to be written with Little-Endian byte order. This
option only has an effect when the output file is created or
overwritten and not when it is appended to.
- -M
- Suppress the use of memory-mapped files when reading images.
- -p
- Specify the planar configuration to use in writing image data
that has one 8-bit sample per pixel. By default, tiffcp will
create a new file with the same planar configuration as the
original. Specifying -p contig will force data to be written
with multi-sample data packed together, while -p separate
will force samples to be written in separate planes.
- -r
- Specify the number of rows (scanlines) in each strip of data
written to the output file. By default (or when value 0 is
specified), tiffcp attempts to set the rows/strip that no
more than 8 kilobytes of data appear in a strip. If you specify
special value -1 it will results in infinite number of the
rows per strip. The entire image will be the one strip in that
case.
- -s
- Force the output file to be written with data organized in
strips (rather than tiles).
- -t
- Force the output file to be written with data organized in
tiles (rather than strips). options can be used to force the
resultant image to be written as strips or tiles of data,
respectively.
- -w
- Specify the width of a tile (in pixels). tiffcp attempts
to set the tile dimensions so that no more than 8 kilobytes of data
appear in a tile. tiffcp attempts to set the tile dimensions
so that no more than 8 kilobytes of data appear in a tile.
- -,={character}
- substitute {character} for ',' in parsing image directory
indices in files. This is necessary if filenames contain commas.
Note that ',=' with whitespace immediately following will disable
the special meaning of the ',' entirely. See examples.
EXAMPLES
The following concatenates two files and writes
the result using LZW encoding:
-
tiffcp -c lzw a.tif b.tif result.tif
To convert a G3 1d-encoded TIFF to a
single strip of G4-encoded data the following might be used:
-
tiffcp -c g4 -r 10000 g3.tif g4.tif
(1000 is just a number that is larger than the number of
rows in the source file.)
To extract a selected set of images from a multi-image TIFF
file, the file name may be immediately followed by a ',' separated
list of image directory indices. The first image is always in
directory 0. Thus, to copy the 1st and 3rd images of image file
"album.tif" to "result.tif":
-
tiffcp album.tif,0,2 result.tif
Given file "CCD.tif" whose first image is a noise bias followed
by images which include that bias, subtract the noise from all
those images following it (while decompressing) with the command:
-
tiffcp -c none -b CCD.tif CCD.tif,1, result.tif
If the file above were named "CCD,X.tif", the "-,=" option would
be required to correctly parse this filename with image numbers, as
follows:
-
tiffcp -c none -,=% -b CCD,X.tif CCD,X%1%.tif result.tif
SEE ALSO
pal2rgb(1),
tiffinfo(1),
tiffcmp(1),
tiffmedian(1),
tiffsplit(1),
libtiff(3TIFF)
Libtiff library home page: