Ppmtopj User Manual(0) Ppmtopj User Manual(0)

ppmtopj - convert a PPM image to an HP PaintJet file


[-gamma val]

[-xpos val]

[-ypos val]

[-back {dark|lite}]



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


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

    ppmdither -red 2 -green 2 -blue 2

Run length encode the image. (This can result in larger images)
Enhance the foreground by indicating if the background is light or dark compared to the foreground.
Use an internal rendering algorithm (default dither).
Gamma correct the image using the integer int as a gamma (default 0).
Center the image to an 8.5 by 11 page
Move by pos pixels in the x direction.
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(5)

Copyright (C) 1991 by Christos Zoulas.

13 July 1991 netpbm documentation