ppmtopj - convert a PPM image to an HP PaintJet file

ppmtopj

[-gamma val]

[-xpos val]

[-ypos val]

[-back {dark|lite}]

[-rle]

[-center]

[-render { none | snap | bw | dither | diffuse | monodither | monodiffuse | clusterdither | monoclusterdither }]

[ppmfile]

This program is part of Netpbm(1).

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

-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.

HP PaintJet XL Color Graphics Printer User's Guide, pnmtopclxl.html(1), pjtoppm.html(1), pamdepth(1), pnmremap(1), pamseq(1), ppmdither(1), pbmtolj.html(1), ppmtolj(1), thinkjettopbm(1), ppm(1)

Copyright (C) 1991 by Christos Zoulas.