tiffcp
copy (and possibly convert) a TIFF file
see also :
pal2rgb - tiffinfo - tiffcmp - tiffmedian - tiffsplit
Synopsis
tiffcp [
options ] src1.tif ... srcN.tif dst.tif
add an example, a script, a trick and tips
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
A trailing comma denotes remaining images in sequence. The
following command will copy all image with except the first one:
tiffcp album.tif,1, 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
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, zip for Deflate compression,
lzma for LZMA2 compression, jpeg for baseline
JPEG 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,
Deflate and LZMA2 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. A value 3 is for floating point
predictor which you can use if the encoded data are in
floating point format. 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.
Deflate
and LZMA2 encoders support various
compression levels (or encoder presets) set as character
’’p’’ and a preset number.
’’p1’’ is the fastest one with the
worst compression ratio and ’’p9’’
is the slowest but with the best possible ratio; e.g.
-c zip:3:p9 for Deflate encoding
with maximum compression level and floating point
predictor.
-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.
-i
Ignore non-fatal read errors and continue processing of
the input file.
-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.
-x
Force the output file to be written with PAGENUMBER
value in sequence.
-,=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.
see also
pal2rgb ,
tiffinfo , tiffcmp , tiffmedian ,
tiffsplit , libtiff(3TIFF)
Libtiff library
home page: http://www.remotesensing.org/libtiff/