# ppmtopj

Updated: 13 July 1991
Index

## NAME

ppmtopj - convert a portable pixmap to an HP PaintJet file

## SYNOPSIS

ppmtopj [-gamma val] [-xpos val] [-ypos val] [-back {dark|lite}] [-rle] [-center] [-render { none | snap | bw | dither | diffuse | monodither | monodiffuse | clusterdither | monoclusterdither] [ppmfile]

## DESCRIPTION

ppmtopj reads a PPM image 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 convert your input to this format like this:

    pamseq 3 1 testimg.ppm >8color.pam
    pnmremap -map 8color.pam testimg.pam | ppmtopj

Or 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 integer int 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.

## SEE ALSO

HP PaintJet XL Color Graphics Printer User's Guide, pnmtopclx.html, pjtoppm.html, pnmdepth, pnmremap, pamseq, ppmdither, pbmtolj.html, ppmtolj, thinkjettopbm, ppm

## AUTHOR

Copyright (C) 1991 by Christos Zoulas.

## Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
SEE ALSO
AUTHOR