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From: annala@neuro.usc.edu (A J Annala)
Newsgroups: comp.graphics.visualization
Subject: Re: Print grayscale image on HP-LJ
Message-ID: <31037@usc>
Date: 13 Mar 91 06:11:56 GMT
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Organization: USC Neural, Informational & Behavioral Sciences Program, LA, CA
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>	Is there an existing subroutine in C that prints a grayscale
>image of xdim-ydim-nbit (usually 512x480x8) on a HP LaserJet with
>some kind of dithering?

If you need some stand alone code not embedded in a large imaging system
then you should look into the c source code for Jeff Poskanzer's portable
bitmap (pbm) package routines rasttopbm.c (convert sun rasterfile to pbm)
and pbmtolj (pbm file to hplj printer).  These routines are available w/o
charge from many ftp sites and bulletin boards.  You should be able to do
some simple cut and paste work to generate a self contained subroutine to
dump an arbitrary greyscale image to your hplj printer.

Alexander James Annala
USC Neuroscience Image Analysis Facility