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| author | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2006-12-25 03:06:05 +0000 |
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| committer | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2006-12-25 03:06:05 +0000 |
| commit | 1017cbebe5d5edd859e0fddad0a8600f509f4821 (patch) | |
| tree | 78bdf336648566f7a7d55f42837357dea3dd674c /rawtoppm.html | |
| parent | 16f2ac126651015a376eba864a3a35f738b0b25a (diff) | |
| download | netpbm-mirror-1017cbebe5d5edd859e0fddad0a8600f509f4821.tar.gz netpbm-mirror-1017cbebe5d5edd859e0fddad0a8600f509f4821.tar.xz netpbm-mirror-1017cbebe5d5edd859e0fddad0a8600f509f4821.zip | |
Place user guide into Subversion repository
git-svn-id: http://svn.code.sf.net/p/netpbm/code/userguide@181 9d0c8265-081b-0410-96cb-a4ca84ce46f8
Diffstat (limited to 'rawtoppm.html')
| -rw-r--r-- | rawtoppm.html | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/rawtoppm.html b/rawtoppm.html new file mode 100644 index 00000000..a1a8edeb --- /dev/null +++ b/rawtoppm.html @@ -0,0 +1,109 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN"> +<HTML><HEAD><TITLE>Rawtoppm User Manual</TITLE></HEAD> +<BODY> +<H1>rawtoppm</H1> +Updated: 06 February 1991 +<BR> +<A HREF="#index">Table Of Contents</A> +<A NAME="lbAB"> </A> +<H2>NAME</H2> + +rawtoppm - convert a stream of raw RGB bytes to a PPM image + +<A NAME="lbAC"> </A> +<H2>SYNOPSIS</H2> + +<B>rawtoppm</B> + +[<B>-headerskip</B> <I>N</I>] + +[<B>-rowskip</B> <I>N</I>] + +[ +<B>-rgb</B>|<B>-rbg</B>|<B>-grb</B> +|<B>-gbr</B>|<B>-brg</B>|<B>-bgr</B> +] + +[<B>-interpixel</B>|<B>-interrow</B>] + +<I>width</i> <i>height</I> + +[<I>imagedata</I>] + +<A NAME="lbAD"> </A> +<H2>DESCRIPTION</H2> + +<p>This program is part of <a href="index.html">Netpbm</a>. + +<p><b>rawtoppm</b> reads raw RGB bytes as input and produces a PPM +image as output. The input file is just RGB bytes. You have to +specify the width and height on the command line, since the program +obviously can't get them from the file. <b>rawtoppm</b> assumes the +maxval of the input samples is 255, and makes the maxval of the output +PPM 255. + +<p><b>rawtoppm</b> assumes the pixels come top first in the input stream. +If they are actually bottom first, the resulting PPM is upside down, so +run it through <b>pamflip -tb</b>. + +<A NAME="lbAE"> </A> +<H2>OPTIONS</H2> + +<DL COMPACT> +<DT><B>-headerskip</B> + +<DD>Skip over this many bytes at the beginning of the input stream. +Use this option when the input has some kind of header followed by +a raster suitable for <b>rawtoppm</b>. + +<DT><B>-rowskip</B> + +<DD>Skip this many bytes at the end of each row of the raster. (Some +input streams have padding at the end of rows). + +<DT><B>-rgb -rbg -grb -gbr -brg -bgr</B> + +<DD>This option specifies the order of the color components for each +pixel. The default is <B>-rgb</B>. + +<DT><B>-interpixel -interrow</B> + +<DD>These options specify how the colors are interleaved. The default +is <B>-interpixel</B>, meaning interleaved by pixel. A byte of red, a +byte of green, and a byte of blue, or whatever color order you +specified. <B>-interrow</B> means interleaved by row - a row of red, +a row of green, a row of blue, assuming standard rgb color order. An +<B>-interplane</B> option - all the red pixels, then all the green, +then all the blue - would be an obvious extension, but is not +implemented. You could get the same effect by splitting the file into +three parts (perhaps using <b>dd</b>), turning each part into a PGM +file with <b>rawtopgm</b>, and then combining them with <b>rgb3toppm</b>. + +</DL> + +<A NAME="lbAF"> </A> +<H2>SEE ALSO</H2> + +<A HREF="ppm.html">ppm</A>, +<A HREF="rawtopgm.html">rawtopgm</A>, +<A HREF="rgb3toppm.html">rgb3toppm</A>, +<A HREF="pamflip.html">pamflip</A> + +<A NAME="lbAG"> </A> +<H2>AUTHOR</H2> + +Copyright (C) 1991 by Jef Poskanzer. + +<HR> +<A NAME="index"> </A> +<H2>Table Of Contents</H2> +<UL> +<LI><A HREF="#lbAB">NAME</A> +<LI><A HREF="#lbAC">SYNOPSIS</A> +<LI><A HREF="#lbAD">DESCRIPTION</A> +<LI><A HREF="#lbAE">OPTIONS</A> +<LI><A HREF="#lbAF">SEE ALSO</A> +<LI><A HREF="#lbAG">AUTHOR</A> +</UL> +</BODY> +</HTML> |