ppmtopj(1)ppmtopj(1)NAMEppmtopj - convert a portable pixmap to an HP PaintJet file
SYNOPSISppmtopj [-gamma val] [-xpos val] [-ypos val] [-back
dark|lite] [-rle] [-center] [-render
none|snap|bw|dither|diffuse|monodither|monodiffuse|clus
terdither|monoclusterdither] [ppmfile]
DESCRIPTION
Reads a portable pixmap as input and converts it into a
format suitable to be printed by an HP PaintJet printer.
For best results, the input file should be in 8-color RGB
form; i.e. it should have only the 8 binary combinations
of full-on and full-off primaries. You could get this by
sending the input file through ppmquant -map with a map
file such as:
P3
8 1
255
0 0 0 255 0 0 0 255 0 0 0 255
255 255 0 255 0 255 0 255 255 255 255 255
Or else you could use use ppmdither -red 2 -green 2 -blue
2.
OPTIONS-rle Run length encode the image. (This can
result in larger images)
-back Enhance the foreground by indicating if the
background is light or dark compated to the
foreground.
-render alg Use an internal rendering algorithm (default
dither).
-gamma int Gamma correct the image using the integet
parameter as a gamma (default 0).
-center Center the image to an 8.5 by 11 page
-xpos pos Move by pos pixels in the x direction.
-ypos pos Move by pos pixels in the y direction.
REFERENCES
HP PaintJet XL Color Graphics Printer User's Guide
SEE ALSOpnmdepth(1), ppmquant(1), ppmdither(1), ppm(5)BUGS
Most of the options have not been tested because of the
price of the paper.
AUTHOR
Copyright (C) 1991 by Christos Zoulas.
13 July 1991 ppmtopj(1)
