NAME

       pamdice - slice a Netpbm image into many horizontally and/or vertically

EXAMPLE

           $ pamdice myimage.ppm -outstem=myimage_part -width=10 -height=8
           $ pamundice myimage_part_%1d_%1a.ppm -across=10 -down=8 >myimage.ppm

           $ pamdice myimage.ppm -outstem=myimage_part -height=12 -voverlap=9

SYNOPSIS

       pamdice

       -outstem=filenamestem

       [-width=width]

       [-height=height]

       [-hoverlap=hoverlap]

       [-voverlap=voverlap]

       [-verbose]

       [filename]

       You can use the minimum unique abbreviation of the options.  You can use two hyphens instead of one.  You
       can separate an option name from its value with white space instead of an equals sign.

DESCRIPTION

       This program is part of Netpbm(1).

       pamdice reads a PAM, PBM, PGM, or PPM image as input and splits it horizontally  and/or  vertically  into
       equal size pieces and writes them into separate files as the same kind of image.  You can optionally make
       the pieces overlap.

       See the -outstem option for information on naming of the output files.

       The -width and -height options determine the size of the output pieces.

       pamundice can rejoin the images.  For finer control, you can also use pamcat.

       One use for this is to make pieces that take less computer resources than the  whole  image  to  process.
       For  example,  you  might  have  an  image so large that an image editor can't read it all into memory or
       processes it very slowly.  With pamdice, you can split it into smaller pieces, edit one at  a  time,  and
       then reassemble them.

       Another  use for this is to print a large image in small printer-sized pieces that you can glue together.
       ppmglobe does a similar thing; it lets you glue the pieces together into a sphere.

       If you want to cut pieces from an image individually, not in a regular grid, use pamcut.

OPTIONS

       In addition to the options common to all programs based on libnetpbm (most notably -quiet, see
        Common Options ⟨index.html#commonoptions⟩ ), pamdice recognizes the following command line options:

       -outstem=filenamestem
              This  option  determines  the  names  of  the  output  files.    Each   output   file   is   named
              filenamestem_y_x.type  where  filenamestem  is  the  value of the -outstem option, x and y are the
              horizontal and vertical locations, respectively, in the input image  of  the  output  image,  zero
              being the leftmost and top, and type is .pbm, .pgm, .ppm, or .pam, depending on the type of image.

       -width=width
              gives the width in pixels of the output images.  The rightmost pieces are smaller than this if the
              input image is not a multiple of width pixels wide.

       -height=height
              gives the height in pixels of the output images.  The bottom pieces are smaller than this  if  the
              input image is not a multiple of height pixels high.

       -hoverlap=hoverlap
              gives  the  horizontal  overlap in pixels between output images.  Each image in a row will overlap
              the previous one by hoverlap pixels.  By default, there is no overlap.

              This option was new in Netpbm 10.23 (July 2004).

       -voverlap=voverlap
              gives the vertical overlap in pixels between output images.  Each row of images will  overlap  the
              previous row by voverlap pixels.  By default, there is no overlap.

              This option was new in Netpbm 10.23 (July 2004).

       -verbose
              Print information about the processing to Standard Error.

HISTORY

       pamdice was new in Netpbm 9.25 (March 2002).

       Before Netpbm 10.29 (August 2005), there was a limit of 100 slices in each direction.

SEE ALSO

       pamundice(1), pamcut(1), pamcat(1), pgmslice(1), ppmglobe(1) pnm(1) pam(1)

DOCUMENT SOURCE

       This  manual  page was generated by the Netpbm tool 'makeman' from HTML source.  The master documentation
       is at

              http://netpbm.sourceforge.net/doc/pamdice.html