Initial import

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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
+<HTML><HEAD><TITLE>Manpage of RGB2YCBCR</TITLE>
+</HEAD><BODY BGCOLOR=WHITE><FONT FACE="helvetica, sans, arial">
+<H1>RGB2YCBCR</H1>
+Section: User Commands  (1)<BR>Updated: October 15, 1995<BR><A HREF="#index">Index</A>
+<BR><A HREF="index.html">Return to Main Contents</A>
+<HR>
+
+<A NAME="lbAB">&nbsp;</A>
+<H2>NAME</H2>
+
+rgb2ycbcr - convert non-YCbCr
+<FONT SIZE="-1">TIFF</FONT>
+images to a YCbCr
+<FONT SIZE="-1">TIFF</FONT>
+image
+<A NAME="lbAC">&nbsp;</A>
+<H2>SYNOPSIS</H2>
+
+<B>rgb2ycbcr</B>
+
+[
+<I>options</I>
+
+]
+<I>src1.tif src2.tif ... dst.tif</I>
+
+<A NAME="lbAD">&nbsp;</A>
+<H2>DESCRIPTION</H2>
+
+<I>rgb2ycbcr</I>
+
+converts
+<FONT SIZE="-1">RGB</FONT>
+color, greyscale, or bi-level
+<FONT SIZE="-1">TIFF</FONT>
+images to YCbCr images by
+transforming and sampling pixel data.
+If multiple files are specified on the command line
+each source file is converted to a separate directory
+in the destination file.
+<P>
+
+By default, chrominance samples are created by sampling
+2 by 2 blocks of luminance values; this can be changed with
+the
+<B>-h</B>
+
+and
+<B>-v</B>
+
+options.
+Output data are compressed with the
+<FONT SIZE="-1">LZW</FONT>
+compression scheme, by default; an alternate scheme can be
+selected with the
+<B>-c</B>
+
+option.
+By default, output data are compressed in strips with
+the number of rows in each strip selected so that the
+size of a strip is never more than 8 kilobytes;
+the
+<B>-r</B>
+
+option can be used to explicitly set the number of
+rows per strip.
+<A NAME="lbAE">&nbsp;</A>
+<H2>OPTIONS</H2>
+
+<DL COMPACT>
+<DT><B>-c</B>
+
+<DD>
+Specify a compression scheme to use when writing image data:
+<B>-c none</B>
+
+for no compression,
+<B>-c packbits</B>
+
+for the PackBits compression algorithm,
+<B>-c jpeg</B>
+
+for the JPEG compression algorithm,
+and
+<B>-c lzw</B>
+
+for Lempel-Ziv &amp; Welch (the default).
+<DT><B>-h</B>
+
+<DD>
+Set the horizontal sampling dimension to one of: 1, 2 (default), or 4.
+<DT><B>-r</B>
+
+<DD>
+Write data with a specified number of rows per strip;
+by default the number of rows/strip is selected so that each strip
+is approximately 8 kilobytes.
+<DT><B>-v</B>
+
+<DD>
+Set the vertical sampling dimension to one of: 1, 2 (default), or 4.
+</DL>
+<A NAME="lbAF">&nbsp;</A>
+<H2>SEE ALSO</H2>
+
+<I><A HREF="tiffinfo+1.html">tiffinfo</A></I>(1),
+
+<I><A HREF="tiffcp+1.html">tiffcp</A></I>(1),
+
+<I><A HREF="libtiff+3">libtiff</A></I>(3)
+
+
+<HR>
+<A NAME="index">&nbsp;</A><H2>Index</H2>
+<DL>
+<DT><A HREF="#lbAB">NAME</A><DD>
+<DT><A HREF="#lbAC">SYNOPSIS</A><DD>
+<DT><A HREF="#lbAD">DESCRIPTION</A><DD>
+<DT><A HREF="#lbAE">OPTIONS</A><DD>
+<DT><A HREF="#lbAF">SEE ALSO</A><DD>
+</DL>
+<HR>
+This document was created by
+<A HREF="index.html">man2html</A>,
+using the manual pages.<BR>
+Time: 01:31:47 GMT, November 23, 1999
+</BODY>
+</HTML>