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188 lines
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HTML
188 lines
8.7 KiB
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<html xmlns="http://www.w3.org/1999/xhtml">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>Overview — Visual Studio 2008 Developer Notes for Tesseract-OCR</title>
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<link rel="stylesheet" href="_static/tesseract.css" type="text/css" />
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<link rel="top" title="Visual Studio 2008 Developer Notes for Tesseract-OCR" href="index.html" />
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<link rel="next" title="Setting up Tesseract-OCR" href="setup.html" />
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<h3>Navigation</h3>
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<ul>
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<li class="right" style="margin-right: 10px">
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<a href="setup.html" title="Setting up Tesseract-OCR"
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accesskey="N">next</a></li>
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<li class="right" >
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<a href="index.html" title="Visual Studio 2008 Developer Notes for Tesseract-OCR"
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accesskey="P">previous</a> |</li>
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<li><a href="http://code.google.com/p/tesseract-ocr/">Tesseract-OCR Home</a> »</li>
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<li><a href="index.html">Visual Studio 2008 Developer Notes</a> »</li>
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</ul>
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</div>
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<div class="document">
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<div class="body">
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<div class="section" id="overview">
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<h1>Overview<a class="headerlink" href="#overview" title="Permalink to this headline">¶</a></h1>
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<p>The recommended audience for this document are developers who want to
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use Microsoft Visual Studio 2008 with <a class="reference external" href="http://code.google.com/p/tesseract-ocr/">Tesseract-OCR</a>. If you simply want to <em>run</em>
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<span class="filesystem">tesseract</span> or its various language training applications, then see the
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<a class="reference external" href="http://code.google.com/p/tesseract-ocr/wiki/ReadMe">ReadMe</a>. You’ll
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find instructions there on how to download tesseract’s Windows
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installer.</p>
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<p><strong>Tesseract-OCR</strong> consists of:</p>
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<ul>
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<li><p class="first"><span class="filesystem">libtesseract</span> – the static (or dynamic) library that does all the
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actual work. As of February 2012 it consists of 260+ <span class="filesystem">C++</span> files
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along with 290+ header files.</p>
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</li>
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<li><p class="first"><span class="filesystem">tesseract.exe</span> – the command-line OCR engine. It’s built from a
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single, small <span class="filesystem">C++</span> file that just calls functions in
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<span class="filesystem">libtesseract</span>. There currently isn’t very much documentation on how
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to use <span class="filesystem">tesseract.exe</span>, but you can look at what’s there in the
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repository’s <a class="reference external" href="http://code.google.com/p/tesseract-ocr/source/browse/#svn%2Ftrunk%2Fdoc">doc</a>
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subdirectory.</p>
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</li>
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<li><p class="first">Language packs – needed by <span class="filesystem">tesseract.exe</span> in order to recognize
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particular languages.</p>
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</li>
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</ul>
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<ul id="training-applications">
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<li><p class="first">Language training applications – used to teach <span class="filesystem">tesseract.exe</span> new
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languages. Each has their own (very brief) man page in the <a class="reference external" href="http://code.google.com/p/tesseract-ocr/source/browse/#svn%2Ftrunk%2Fdoc">doc</a>
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subdirectory and include:</p>
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<ul>
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<li><p class="first"><span class="filesystem">ambiguous_words.exe</span> – generate sets of words Tesseract is likely
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to find ambiguous</p>
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</li>
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<li><p class="first"><span class="filesystem">classifier_tester</span> – tests a Tesseract character classifier on
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data as formatted for training</p>
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</li>
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<li><p class="first"><span class="filesystem">cntraining.exe</span> – character normalization training</p>
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</li>
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<li><p class="first"><span class="filesystem">combine_tessdata.exe</span> – combine/extract/overwrite Tesseract data</p>
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</li>
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<li><p class="first"><span class="filesystem">dawg2wordlist.exe</span> – convert a Tesseract DAWG to a wordlist</p>
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</li>
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<li><p class="first"><span class="filesystem">mftraining.exe</span> – feature training</p>
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</li>
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<li><p class="first"><span class="filesystem">shapeclustering.exe</span> – shape clustering training</p>
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</li>
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<li><p class="first"><span class="filesystem">unicharset_extractor.exe</span> – extract unicharset from Tesseract
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boxfiles</p>
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</li>
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<li><p class="first"><span class="filesystem">wordlist2dawg.exe</span> – convert a wordlist to a DAWG</p>
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</li>
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</ul>
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<p>Their use is described in the <a class="reference external" href="http://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3">TrainingTesseract3</a>
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Wiki page.</p>
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</li>
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</ul>
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<p>This document explains how to:</p>
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<ul>
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<li><p class="first"><a class="reference internal" href="setup.html"><em>Setup</em></a> the proper directory structure required to use
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the supplied Visual Studio 2008 Solution</p>
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</li>
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</ul>
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<ul>
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<li><p class="first"><a class="reference internal" href="building.html"><em>Build</em></a> <span class="filesystem">libtesseract</span>, <span class="filesystem">tesseract.exe</span>, and the
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training apps</p>
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</li>
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<li><p class="first"><a class="reference internal" href="programming.html"><em>Write</em></a> programs that link with <span class="filesystem">libtesseract</span></p>
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</li>
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</ul>
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</div>
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</div>
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</div>
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</div>
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<div class="sphinxsidebar">
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<div class="sphinxsidebarwrapper">
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<ul class="current">
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<li class="toctree-l1 current"><a class="current reference internal" href="">Overview</a></li>
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<li class="toctree-l1"><a class="reference internal" href="setup.html">Setting up <strong>Tesseract-OCR</strong></a></li>
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<li class="toctree-l1"><a class="reference internal" href="building.html">Building <strong>Tesseract-OCR</strong></a></li>
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<li class="toctree-l1"><a class="reference internal" href="programming.html">Programming with <span class="filesystem">libtesseract</span></a></li>
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<li class="toctree-l1"><a class="reference internal" href="tools.html">Handy free tools</a></li>
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<li class="toctree-l1"><a class="reference internal" href="maintenance.html">Maintaining the VS2008 directory</a></li>
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<li class="toctree-l1"><a class="reference internal" href="vs2010-notes.html">Using Visual Studio 2010</a></li>
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<li class="toctree-l1"><a class="reference internal" href="versions.html">Version Notes</a></li>
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</ul>
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<h3>Quick search</h3>
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Enter search terms or a module, class or function name.
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<h3>Navigation</h3>
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<ul>
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<li class="right" style="margin-right: 10px">
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<a href="setup.html" title="Setting up Tesseract-OCR"
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>next</a></li>
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<li class="right" >
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<a href="index.html" title="Visual Studio 2008 Developer Notes for Tesseract-OCR"
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>previous</a> |</li>
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<li><a href="http://code.google.com/p/tesseract-ocr/">Tesseract-OCR Home</a> »</li>
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<li><a href="index.html">Visual Studio 2008 Developer Notes</a> »</li>
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