Ppmtv User Manual(1) General Commands Manual Ppmtv User Manual(1)
NAME
ppmtv - make a PPM image look like taken from an American TV
SYNOPSIS
ppmtv dimfactor
[ppmfile]
DESCRIPTION
This program is part of Netpbm(1).
ppmtv reads a PPM image as input and dims every other row of image data
down by the specified dim factor. This factor may be in the range of
0.0 (the alternate lines are totally black) to 1.0 (original image).
This creates an effect similar to what I've once seen in the video clip
'You could be mine' by Guns'n'Roses. In the scene I'm talking about
you can see John Connor on his motorbike, looking up from the water
trench (?) he's standing in. While the camera pulls back, the image
gets 'normal' by brightening up the alternate rows of it. I thought
this would be an interesting effect to try in MPEG. I did not yet check
this out, however. Try for yourself.
OPTIONS
There are no command line options defined specifically for ppmtv, but
it recognizes the options common to all programs based on libnetpbm
(See
Common Options ⟨index.html#commonoptions⟩ .)
SEE ALSO
ppm(1), ppmdim(1)
AUTHOR
Copyright (C) 1993 by Frank Neumann
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/ppmtv.html
netpbm documentation 16 November 1993 Ppmtv User Manual(1)
Generated by dwww version 1.15 on Sat Jun 29 02:21:30 CEST 2024.