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Pampop9 User Manual(0)                                  Pampop9 User Manual(0)



NAME
       pampop9 - simulate a multi-lens camera such as the Pop9


SYNOPSIS
       pampop9 pnmfile|- xtiles ytiles xdelta ydelta


DESCRIPTION
       This program is part of Netpbm(1).

       pampop9 tiles your starting image xtiles by ytiles times.  Each of these tiles is taken from a slightly differ-
       ent offset within the source, as determined by the xdelta and ydelta arguments.


       The top line of tiles in the output is taken from the top of the source  image,  the  second  starts  with  the
       ydelta  row  of  the  source  image, the next with the 2*ydelta row, and so on.  Similarly, the first column of
       tiles in the output is taken from the left of the source image, the next starts with  the  xdelta  column,  the
       next with the 2*xdelta column, and so on.



EXAMPLES
       With  a 100 x 100 source image, then the output image from pampop9 3 3 10 10 will appear to be a three-by-three
       grid, each tile being 80 x 80 pixels.  If the origin is taken to be the top-left corner, then the  top  row  of
       tiles  will  take start at (0, 0) (10, 0) (20, 0) within the source image, the middle row will start at (0, 10)
       (10, 10) (20, 10), and the bottom row at (0, 20) (10, 20) (20, 20).



HISTORY
       pampop9 was new in Netpbm 10.15 (April 2003).  It was adapted slightly from pampup9, which was  distributed  by
       Robert  Tinsley.   At  that  time,  it was distributed via http://www.thepoacher.net/code/#pampup9.  By October
       2004, that URL no longer was valid.


SEE ALSO
       pnmtile(1)


AUTHOR
       Copyright (C) 2003 by Robert Tinsley.  This software is released under the GPL (
        http://www.fsf.org/licenses/gpl.txt ).



netpbm documentation             02 March 2003          Pampop9 User Manual(0)