Apama SIFMA - II

 
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Old 07-02-2007
Apama SIFMA - II

As promised in the last post, the enclosed picture is the final mural, completed on Thursday of SIFMA. All in all, a nice artistic tribute to what's been happening with Apama. And given the amount of interest spawned by our SIFMA presence, we'll be needing a bigger canvas next year.
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ppmshift(1)						      General Commands Manual						       ppmshift(1)

NAME
ppmshift - shift lines of a portable pixmap left or right by a random amount SYNOPSIS
ppmshift shift [ppmfile] DESCRIPTION
Reads a portable pixmap as input. Shifts every row of image data to the left or right by a certain amount. The 'shift' parameter determines by how many pixels a row is to be shifted at most. Another one of those effects I intended to use for MPEG tests. Unfortunately, this program will not help me here - it creates too random patterns to be used for animations. Still, it might give interesting results on still images. EXAMPLE
Check this out: Save your favourite model's picture from something like alt.binaries.pictures.supermodels (ok, or from any other picture source), convert it to ppm, and process it e.g. like this, assuming the picture is 800x600 pixels: # take the upper half, and leave it like it is pnmcut 0 0 800 300 cs.ppm >upper.ppm # take the lower half, flip it upside down, dim it and distort it a little pnmcut 0 300 800 300 cs.ppm | pnmflip -tb | ppmdim 0.7 | ppmshift 10 >lower.ppm # and concatenate the two pieces pnmcat -tb upper.ppm lower.ppm >newpic.ppm The resulting picture looks like the image being reflected on a water surface with slight ripples. SEE ALSO
ppm(5), pnmcut(1), pnmflip(1), ppmdim(1), pnmcat(1) AUTHOR
Copyright (C) 1993 by Frank Neumann 16 November 1993 ppmshift(1)