NAME¶
ppmspread - displace a portable pixmap's pixels by a random amount
SYNOPSIS¶
ppmspread
amount [
ppmfile]
DESCRIPTION¶
Reads a portable pixmap as input. Moves every pixel around a bit relative to its
original position. amount determines by how many pixels a pixel is to be moved
around at most.
Pictures processed with this filter will seem to be somewhat dissolved or
unfocussed (although they appear more coarse than images processed by
something like
pnmconvol ).
SEE ALSO¶
ppm(5),
pnmconvol(1)
AUTHOR¶
Copyright (C) 1993 by Frank Neumann