phpman > man > ppmtopj(1)

ppmtopj(1)                             General Commands Manual                            ppmtopj(1)



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
       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 com‐
                     pated 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 ALSO
       pnmdepth(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)