mirror of
https://github.com/tesseract-ocr/tesseract.git
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58e06c8c45
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@670 d0cd1f9f-072b-0410-8dd7-cf729c803f20
833 lines
20 KiB
HTML
833 lines
20 KiB
HTML
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<meta name="generator" content="AsciiDoc 8.5.2" />
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<title>COMBINE_TESSDATA(1)</title>
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</head>
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<body>
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<div id="header">
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<h1>
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COMBINE_TESSDATA(1) Manual Page
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</h1>
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<h2>NAME</h2>
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<div class="sectionbody">
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<p>combine_tessdata -
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combine/extract/overwrite Tesseract data
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</p>
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</div>
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</div>
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<div id="content">
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<h2 id="_synopsis">SYNOPSIS</h2>
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<div class="sectionbody">
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<div class="paragraph"><p><strong>combine_tessdata</strong> [<em>OPTION</em>] <em>FILE</em>…</p></div>
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</div>
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<h2 id="_description">DESCRIPTION</h2>
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<div class="sectionbody">
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<div class="paragraph"><p>combine_tessdata(1) is the main program to combine/extract/overwrite
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tessdata components in [lang].traineddata files.</p></div>
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<div class="paragraph"><p>To combine all the individual tessdata components (unicharset, DAWGs,
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classifier templates, ambiguities, language configs) located at, say,
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/home/$USER/temp/eng.* run:</p></div>
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<div class="literalblock">
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<div class="content">
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<pre><tt>combine_tessdata /home/$USER/temp/eng.</tt></pre>
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</div></div>
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<div class="paragraph"><p>The result will be a combined tessdata file /home/$USER/temp/eng.traineddata</p></div>
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<div class="paragraph"><p>Specify option -e if you would like to extract individual components
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from a combined traineddata file. For example, to extract language config
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file and the unicharset from tessdata/eng.traineddata run:</p></div>
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<div class="literalblock">
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<div class="content">
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<pre><tt>combine_tessdata -e tessdata/eng.traineddata \
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/home/$USER/temp/eng.config /home/$USER/temp/eng.unicharset</tt></pre>
|
|
</div></div>
|
|
<div class="paragraph"><p>The desired config file and unicharset will be written to
|
|
/home/$USER/temp/eng.config /home/$USER/temp/eng.unicharset</p></div>
|
|
<div class="paragraph"><p>Specify option -o to overwrite individual components of the given
|
|
[lang].traineddata file. For example, to overwrite language config
|
|
and unichar ambiguities files in tessdata/eng.traineddata use:</p></div>
|
|
<div class="literalblock">
|
|
<div class="content">
|
|
<pre><tt>combine_tessdata -o tessdata/eng.traineddata \
|
|
/home/$USER/temp/eng.config /home/$USER/temp/eng.unicharambigs</tt></pre>
|
|
</div></div>
|
|
<div class="paragraph"><p>As a result, tessdata/eng.traineddata will contain the new language config
|
|
and unichar ambigs, plus all the original DAWGs, classifier templates, etc.</p></div>
|
|
<div class="paragraph"><p>Note: the file names of the files to extract to and to overwrite from should
|
|
have the appropriate file suffixes (extensions) indicating their tessdata
|
|
component type (.unicharset for the unicharset, .unicharambigs for unichar
|
|
ambigs, etc). See k*FileSuffix variable in ccutil/tessdatamanager.h.</p></div>
|
|
<div class="paragraph"><p>Specify option -u to unpack all the components to the specified path:</p></div>
|
|
<div class="literalblock">
|
|
<div class="content">
|
|
<pre><tt>combine_tessdata -u tessdata/eng.traineddata /home/$USER/temp/eng.</tt></pre>
|
|
</div></div>
|
|
<div class="paragraph"><p>This will create /home/$USER/temp/eng.* files with individual tessdata
|
|
components from tessdata/eng.traineddata.</p></div>
|
|
</div>
|
|
<h2 id="_options">OPTIONS</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p><strong>-e</strong> <em>.traineddata</em> <em>FILE</em>…:
|
|
Extracts the specified components from the .traineddata file</p></div>
|
|
<div class="paragraph"><p><strong>-o</strong> <em>.traineddata</em> <em>FILE</em>…:
|
|
Overwrites the specified components of the .traineddata file
|
|
with those provided on the comand line.</p></div>
|
|
<div class="paragraph"><p><strong>-u</strong> <em>.traineddata</em> <em>PATHPREFIX</em>
|
|
Unpacks the .traineddata using the provided prefix.</p></div>
|
|
</div>
|
|
<h2 id="_caveats">CAVEATS</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p><em>Prefix</em> refers to the full file prefix, including period (.)</p></div>
|
|
</div>
|
|
<h2 id="_components">COMPONENTS</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>The components in a Tesseract lang.traineddata file as of
|
|
Tesseract 3.02 are briefly described below; For more information on
|
|
many of these files, see
|
|
<a href="http://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3">http://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3</a></p></div>
|
|
<div class="dlist"><dl>
|
|
<dt class="hdlist1">
|
|
lang.config
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Optional) Language-specific overrides to default config variables.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.unicharset
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Required) The list of symbols that Tesseract recognizes, with properties.
|
|
See unicharset(5).
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.unicharambigs
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Optional) This file contains information on pairs of recognized symbols
|
|
which are often confused. For example, <em>rn</em> and <em>m</em>.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.inttemp
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Required) Character shape templates for each unichar. Produced by
|
|
mftraining(1).
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.pffmtable
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Required) The number of features expected for each unichar.
|
|
Produced by mftraining(1) from <strong>.tr</strong> files.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.normproto
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Required) Character normalization prototypes generated by cntraining(1)
|
|
from <strong>.tr</strong> files.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.punc-dawg
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Optional) A dawg made from punctuation patterns found around words.
|
|
The "word" part is replaced by a single space.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.word-dawg
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Optional) A dawg made from dictionary words from the language.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.number-dawg
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Optional) A dawg made from tokens which originally contained digits.
|
|
Each digit is replaced by a space character.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.freq-dawg
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Optional) A dawg made from the most frequent words which would have
|
|
gone into word-dawg.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.fixed-length-dawgs
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Optional) Several dawgs of different fixed lengths — useful for
|
|
languages like Chinese.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.cube-unicharset
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Optional) A unicharset for cube, if cube was trained on a different set
|
|
of symbols.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.cube-word-dawg
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Optional) A word dawg for cube’s alternate unicharset. Not needed if Cube
|
|
was trained with Tesseract’s unicharset.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.shapetable
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Optional) When present, a shapetable is an extra layer between the character
|
|
classifier and the word recognizer that allows the character classifier to
|
|
return a collection of unichar ids and fonts instead of a single unichar-id
|
|
and font.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.bigram-dawg
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Optional) A dawg of word bigrams where the words are separated by a space
|
|
and each digit is replaced by a <em>?</em>.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.unambig-dawg
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Optional) TODO: Describe.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
lang.params-training-model
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
(Optional) TODO: Describe.
|
|
</p>
|
|
</dd>
|
|
</dl></div>
|
|
</div>
|
|
<h2 id="_history">HISTORY</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>combine_tessdata(1) first appeared in version 3.00 of Tesseract</p></div>
|
|
</div>
|
|
<h2 id="_see_also">SEE ALSO</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>tesseract(1), wordlist2dawg(1), cntraining(1), mftraining(1), unicharset(5),
|
|
unicharambigs(5)</p></div>
|
|
</div>
|
|
<h2 id="_copying">COPYING</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>Copyright (C) 2009, Google Inc.
|
|
Licensed under the Apache License, Version 2.0</p></div>
|
|
</div>
|
|
<h2 id="_author">AUTHOR</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>The Tesseract OCR engine was written by Ray Smith and his research groups
|
|
at Hewlett Packard (1985-1995) and Google (2006-present).</p></div>
|
|
</div>
|
|
</div>
|
|
<div id="footnotes"><hr /></div>
|
|
<div id="footer">
|
|
<div id="footer-text">
|
|
Last updated 2012-02-08 10:52:17 PDT
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html>
|