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pamsplit(1) |
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pamsplit
Updated: 23 October 2005
Table Of Contents
NAME
pamsplit - split a multi-image PNM/PAM file into single-image files
SYNOPSIS
pamsplit [netpbmfile[ output_file_pattern]] [-padname=n]
Minimum unique abbreviation of
option is acceptable. You may use double
hyphens instead of single hyphen to denote options. You may
use white space
in place of the equals sign to separate an option name from
its value.
DESCRIPTION
This program is part of Netpbm.
pamsplit reads a PNM or PAM
stream as input. It copies each image in the
input into a separate file, in the same format.
netpbmfile is the file
specification of the input file, or - to indicate
Standard Input. The default is Standard Input.
output_file_pattern tells how to
name the output files. It is the file
specification of the output file, except that the first
occurence of "%d" in
it is replaced by the image sequence number in unpadded
ASCII decimal, with
the sequence starting at 0. If there is no "%d" in
the pattern, pamsplit
fails.
The default output file pattern is "image%d".
The -padname option specifies to
how many characters you want the image
sequence number in the output file name padded with zeroes.
pamsplit adds
leading zeroes to the image sequence number to get up to at
least that
number of characters. This is just the number of characters
in the sequence
number part of the name. For example, pamsplit -
outputfile%d.ppm -padname=3
would yield output filenames outputfile000.ppm,
outputfile001.ppm, etc.
The default is no padding (equivalent to -padname=0.
The -padname option was new in
Netpbm 10.23 (July 2004). Before that, there
was never any padding.
Note that to do the reverse
operation (combining multiple single-image
Netpbm files into a multi-image one), there is no special
Netpbm program.
Just use cat.
If you just want to find out
basic information about the images in a stream,
you can use pamfile on the stream.
To extract images from a stream
and generate a single stream containing
them, use pampick.
SEE ALSO
pamfile, pampick, pnm, pam, cat
man page
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Table Of Contents
* NAME
* SYNOPSIS
* DESCRIPTION
* SEE ALSO
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pamsplit(1) | |