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ppmtopj - convert a PPM image to an HP PaintJet file |
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ppmtopj [-gamma val] [-xpos val] [-ypos val] [-back {dark|lite}] [-rle] [-center] [-render { none | snap | bw | dither | diffuse | monodither | monodiffuse | clusterdither | monoclusterdither }] [ppmfile] |
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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 |
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-rle |
Run length encode the image. (This can result in larger images) |
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-back |
Enhance the foreground by indicating if the background is light or dark compated to the foreground. |
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-render alg |
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Use an internal rendering algorithm (default dither). |
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-gamma int |
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Gamma correct the image using the integer int as a gamma (default 0). |
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-center |
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Center the image to an 8.5 by 11 page |
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-xpos pos |
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Move by pos pixels in the x direction. |
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-ypos pos |
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Move by pos pixels in the y direction. |
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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) |
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Copyright (C) 1991 by Christos Zoulas. |