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pgma_io.html
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<html>
<head>
<title>
PGMA_IO - Read or write an ASCII PGM file.
</title>
</head>
<body bgcolor="#EEEEEE" link="#CC0000" alink="#FF3300" vlink="#000055">
<h1 align = "center">
PGMA_IO <br> Read or write an ASCII PGM file.
</h1>
<hr>
<p>
<b>PGMA_IO</b>
is a MATLAB library which
reads and writes files in the
<a href = "../../data/pgma/pgma.html">ASCII PGM</a>
(Portable Gray Map) format for 2D grayscale graphics information.
</p>
<h3 align = "center">
Licensing:
</h3>
<p>
The computer code and data files described and made available on this web page
are distributed under
<a href = "../../txt/gnu_lgpl.txt">the GNU LGPL license.</a>
</p>
<h3 align = "center">
Languages:
</h3>
<p>
<b>PGMA_IO</b> is available in
<a href = "../../c_src/pgma_io/pgma_io.html">a C version</a> and
<a href = "../../cpp_src/pgma_io/pgma_io.html">a C++ version</a> and
<a href = "../../f77_src/pgma_io/pgma_io.html">a FORTRAN77 version</a> and
<a href = "../../f_src/pgma_io/pgma_io.html">a FORTRAN90 version</a> and
<a href = "../../m_src/pgma_io/pgma_io.html">a MATLAB version</a>.
</p>
<h3 align = "center">
Related Data and Programs:
</h3>
<p>
<a href = "../../m_src/pbma_io/pbma_io.html">
PBMA_IO<a>,
a MATLAB library which
handles the ASCII Portable Bit Map format.
</p>
<p>
<a href = "../../data/pgma/pgma.html">
PGMA</a>,
a data directory which
contains examples of ASCII PGM files.
</p>
<p>
<a href = "../../cpp_src/pgma_to_pgmb/pgma_to_pgmb.html">
PGMA_TO_PGMB<a>,
a C++ program which
converts an ASCII PGM file to a binary PGM file.
</p>
<p>
<a href = "../../cpp_src/pgmb_to_pgma/pgmb_to_pgma.html">
PGMB_TO_PGMA<a>,
a C++ program which
converts a binary PGM file to an ASCII PGM file.
</p>
<p>
<a href = "../../m_src/ppma_io/ppma_io.html">
PPMA_IO<a>,
a MATLAB library which
handles the ASCII Portable Pixel Map format.
</p>
<h3 align = "center">
Reference:
</h3>
<p>
<ol>
<li>
<a href = "http://netpbm.sourceforge.net/">the NETPBM homepage</a>.
</li>
</ol>
</p>
<h3 align = "center">
Source Code:
</h3>
<p>
<ul>
<li>
<a href = "pgma_example.m">pgma_example.m</a>, a function that creates
a set of grayscale data.
</li>
<li>
<a href = "pgma_read.m">pgma_read.m</a>, a function that reads
an ASCII PGM file.
</li>
<li>
<a href = "pgma_write.m">pgma_write.m</a>, a function that writes
an ASCII PGM file.
</li>
<li>
<a href = "pgma_write_test.m">pgma_write.m</a>, tests the
writes routine for writing an ASCII PGM file.
</li>
<li>
<a href = "timestamp.m">timestamp.m</a>
prints the YMDHMS date as a timestamp.
</li>
</ul>
</p>
<h3 align = "center">
Examples and Tests:
</h3>
<p>
<ul>
<li>
<a href = "pgma_io_test.m">pgma_io_test.m</a>
runs the tests.
</li>
<li>
<a href = "pgma_io_test_output.txt">pgma_io_test_output.txt</a>
the output file.
</li>
<li>
<a href = "pgma_io_test01.m">pgma_io_test01.m</a>,
tests PGMA_WRITE.
</li>
<li>
<a href = "pgma_io_test02.m">pgma_io_test02.m</a>,
tests PGMA_READ.
</li>
<li>
<a href = "pgma_io_test03.m">pgma_io_test03.m</a>,
creates a grayscale with nicely graded bands.
</li>
</ul>
</p>
<p>
You can go up one level to <a href = "../m_src.html">
the MATLAB source codes</a>.
</p>
<hr>
<i>
Last revised on 01 September 2005.
</i>
<!-- John Burkardt -->
</body>
</html>