1Ppmspread User Manual(0)                              Ppmspread User Manual(0)
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NAME

6       ppmspread - displace a PPM image's pixels by a random amount
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SYNOPSIS

10       ppmspread amount [ppmfile]
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DESCRIPTION

14       This program is part of Netpbm(1).
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16       ppmspread  reads  a  PPM  image as input and moves every pixel around a
17       random bit relative to its original position. amount determines by  how
18       many pixels a pixel is to be moved around at most.
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20       Pictures  processed with this filter will seem to be somewhat dissolved
21       or unfocussed (although they appear more coarse than  images  processed
22       by something like pnmconvol).
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24       The  randomness  in  the image is limited before Netpbm 10.37 (December
25       2006) -- if you run the program twice in the same second, you  may  get
26       identical output.
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SEE ALSO

31       ppm(1), pnmconvol(1)
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AUTHOR

35       Copyright (C) 1993 by Frank Neumann
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DOCUMENT SOURCE

38       This  manual  page was generated by the Netpbm tool 'makeman' from HTML
39       source.  The master documentation is at
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41              http://netpbm.sourceforge.net/doc/ppmspread.html
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43netpbm documentation           20 November 2008       Ppmspread User Manual(0)