tiffcp(1)
TIFFCP(1) USER COMMANDS TIFFCP(1)
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 typlically 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) compres-
sion. 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
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TIFFCP(1) USER COMMANDS TIFFCP(1)
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 pred-
ictor value. A predictor value of 2 causes each scan-
line of the output image to undergo horizontal dif-
ferencing 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 Fil-
lOrder 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 sam-
ples 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.
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TIFFCP(1) USER COMMANDS TIFFCP(1)
-s Force the output file to be written with data organized
in strips (rather than tiles).
-t Force the output file to be written wtih 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 direc-
tory indices in files. This is necessary if filenames
contain commas. Note that ',=' with whitespace immedi-
ately 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 fol-
lowed 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),
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TIFFCP(1) USER COMMANDS TIFFCP(1)
tiffsplit(1), libtiff(3)
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