99 lines
2.6 KiB
HTML
99 lines
2.6 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of PPMQVGA</TITLE>
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</HEAD><BODY>
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<H1>PPMQVGA</H1>
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Section: User Commands (1)<BR>Updated: local<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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ppmqvga - 8 plane quantization
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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ppmqvga [ options ] [ input file ]
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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<B>ppmqvga</B>
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quantizes PPM files to 8 planes, with optional Floyd-Steinberg dithering.
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Input is a PPM file from the file named, or standard input of no file is
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provided.
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<A NAME="lbAE"> </A>
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<H3>Options</H3>
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<B>-d</B>
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dither. Apply Floyd-Steinberg dithering to the data
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<P>
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<B>-q</B>
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quiet. Produces no progress reporting, and no terminal output unless
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and error occurs.
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<P>
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<B>-v</B>
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verbose. Produces additional output describing the number of colors found,
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and some information on the resulting mapping. May be repeated to generate
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loads of internal table output, but generally only useful once.
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<A NAME="lbAF"> </A>
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<H2>EXAMPLES</H2>
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ppmqvga -d my_image.ppm | ppmtogif >my_image.gif
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<P>
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tgatoppm zombie.tga | ppmqvga | ppmtotif > zombie.tif
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<A NAME="lbAG"> </A>
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<H2>SEE ALSO</H2>
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ppmquant
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<A NAME="lbAH"> </A>
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<H2>DIAGNOSTICS</H2>
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Error messages if problems, various levels of optional progress reporting.
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<A NAME="lbAI"> </A>
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<H2>LIMITATIONS</H2>
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none known.
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<A NAME="lbAJ"> </A>
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<H2>AUTHOR</H2>
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Original by Lyle Rains (<A HREF="mailto:lrains@netcom.com">lrains@netcom.com</A>) as ppmq256 and ppmq256fs
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combined, documented, and enhanced by Bill Davidsen (<A HREF="mailto:davidsen@crd.ge.com">davidsen@crd.ge.com</A>)
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<A NAME="lbAK"> </A>
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<H2>Copyright</H2>
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Copyright 1991,1992 by Bill Davidsen, all rights reserved.
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The program and documentation may be freely distributed by anyone in source
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or binary format. Please clearly note any changes.
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="1"><A HREF="#lbAB">NAME</A><DD>
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<DT id="2"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="3"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DL>
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<DT id="4"><A HREF="#lbAE">Options</A><DD>
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</DL>
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<DT id="5"><A HREF="#lbAF">EXAMPLES</A><DD>
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<DT id="6"><A HREF="#lbAG">SEE ALSO</A><DD>
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<DT id="7"><A HREF="#lbAH">DIAGNOSTICS</A><DD>
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<DT id="8"><A HREF="#lbAI">LIMITATIONS</A><DD>
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<DT id="9"><A HREF="#lbAJ">AUTHOR</A><DD>
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<DT id="10"><A HREF="#lbAK">Copyright</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:25 GMT, March 31, 2021
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</BODY>
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