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Pamsplit User Manual(0)                                Pamsplit User Manual(0)



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(1).

       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  Stan-
       dard 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  deci-
       mal, 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  num-
       ber  of  characters.  This is just the number of characters in the sequence number part of the name.  For exam-
       ple, 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(1), pampick(1), pnm(1), pam(1), cat man page



netpbm documentation            23 October 2005        Pamsplit User Manual(0)