67 lines
1.7 KiB
HTML
67 lines
1.7 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 ppmtoyuvsplit</TITLE>
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</HEAD><BODY>
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<H1>ppmtoyuvsplit</H1>
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Section: User Commands (1)<BR>Updated: 9 September 1993<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="ixAAB"></A>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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ppmtoyuvsplit - convert a portable pixmap into 3 subsampled raw YUV files
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<B>ppmtoyuvsplit</B>
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<I>basename</I>
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[<I>ppmfile</I>]
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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Reads a portable pixmap as input.
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Produces 3 raw files basename.Y, basename.U and basename.V as output.
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These files are the subsampled raw YUV representation of the input
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pixmap, as required by the Stanford MPEG codec. The subsampling is done
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by arithmetic mean of 4 pixels colors into one. The YUV values are scaled
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according to CCIR.601, as assumed by MPEG.
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<A NAME="lbAE"> </A>
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<H2>SEE ALSO</H2>
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<A HREF="/cgi-bin/man/man2html?1+mpeg">mpeg</A>(1), <A HREF="/cgi-bin/man/man2html?5+ppm">ppm</A>(5)
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<A NAME="lbAF"> </A>
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<H2>AUTHOR</H2>
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Copyright (C) 1993 by Andre Beck. (<A HREF="mailto:Andre_Beck@IRS.Inf.TU-Dresden.de">Andre_Beck@IRS.Inf.TU-Dresden.de</A>)
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<P>
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Based on ppmtoyuv.c
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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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<DT id="4"><A HREF="#lbAE">SEE ALSO</A><DD>
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<DT id="5"><A HREF="#lbAF">AUTHOR</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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