mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2025-01-07 10:17:50 +08:00
dfb81e163e
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@484 d0cd1f9f-072b-0410-8dd7-cf729c803f20
1049 lines
20 KiB
HTML
1049 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>TESSERACT(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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TESSERACT(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>tesseract -
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command-line OCR engine
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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>tesseract</strong> <em>imagename</em> <em>textbase</em> [<em>configfile</em>] [<em>-l lang</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>tesseract(1) is a commercial quality OCR engine originally developed at HP
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between 1985 and 1995. In 1995, this engine was among the top 3 evaluated by
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UNLV. It was open-sourced by HP and UNLV in 2005, and has been developed
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by Google since then.</p></div>
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</div>
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<h2 id="_options">OPTIONS</h2>
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<div class="sectionbody">
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<div class="paragraph"><p><em>imagename</em>
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The name of the input image</p></div>
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<div class="paragraph"><p><em>textbase</em>
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The basename of the output file (to which the appropriate extension
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will be appended)</p></div>
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<div class="paragraph"><p><em>configfile</em>
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The config to use. A config is a plaintext file which contains a list
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of variables and their values, one per line, with a space separating
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variable from value.</p></div>
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<div class="paragraph"><p><em>-l lang</em>
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The language to use. If none is specified, English is assumed.
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Tesseract uses 3-character ISO 639-2 language codes. (See LANGUAGES)</p></div>
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<div class="paragraph"><p><em>-v</em>
|
|
Returns the current version of the tesseract(1) executable.</p></div>
|
|
</div>
|
|
<h2 id="_languages">LANGUAGES</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>There are currently language packs available for the following languages:</p></div>
|
|
<div class="hdlist"><table>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
bul
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Bulgarian
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
cat
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Catalan
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
ces
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Czech
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
chi_sim
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Simplified Chinese
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
chi_tra
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Traditional Chinese
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
dan
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Danish
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
dan-frak
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Danish (Fraktur)
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
deu
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
German
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
ell
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Greek
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
eng
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
English
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
fin
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Finnish
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
fra
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
French
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
hun
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Hungarian
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
ind
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Indonesian
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
ita
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Italian
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
jpn
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Japanese
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
kor
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Korean
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
lav
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Latvian
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
lit
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Lithuanian
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
nld
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Dutch
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
nor
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Norwegian
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
pol
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Polish
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
por
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Portuguese
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
ron
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Romanian
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
rus
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Russian
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
slk
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Slovakian
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
slv
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Slovenian
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
spa
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Spanish
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
srp
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Serbian
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
swe
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Swedish
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
tgl
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Tagalog
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
tha
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Thai
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
tur
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Turkish
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
ukr
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Ukrainian
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td class="hdlist1">
|
|
vie
|
|
<br />
|
|
</td>
|
|
<td class="hdlist2">
|
|
<p style="margin-top: 0;">
|
|
Vietnamese
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
</table></div>
|
|
</div>
|
|
<h2 id="_history">HISTORY</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>The engine was developed at Hewlett Packard Laboratories Bristol and at
|
|
Hewlett Packard Co, Greeley Colorado between 1985 and 1994, with some more
|
|
changes made in 1996 to port to Windows, and some C++izing in 1998. A
|
|
lot of the code was written in C, and then some more was written in C++.
|
|
Since then all the code has been converted to at least compile with a
|
|
C++ compiler. Currently it builds under Linux with gcc4.0, gcc4.1 and
|
|
under Windows with VC++6 and VC++Express. The C++ code makes heavy use of
|
|
a list system using macros. This predates stl, was portable before stl, and
|
|
is more efficient than stl lists, but has the big negative that if you do get
|
|
a segmentation violation, it is hard to debug. Another "feature" of the
|
|
C/C++ split is that the C++ data structures get converted to C data
|
|
structures to call the low-level C code. This is ugly, and the C++izing of
|
|
the C code is a step towards eliminating the conversion, but it has not
|
|
happened yet.</p></div>
|
|
<div class="paragraph"><p>The most important changes in version 2.00 were that Tesseract can now
|
|
recognize 6 languages, is fully UTF8 capable, and is fully trainable. See
|
|
<a href="http://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract">http://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract</a> for more
|
|
information on training.</p></div>
|
|
<div class="paragraph"><p>Tesseract was included in UNLV’s Fourth Annual Test of OCR Accuracy.
|
|
See <a href="http://www.isri.unlv.edu/downloads/AT-1995.pdf">http://www.isri.unlv.edu/downloads/AT-1995.pdf</a>. With Tesseract 2.00,
|
|
scripts are now included to allow anyone to reproduce some of these tests.
|
|
See <a href="http://code.google.com/p/tesseract-ocr/wiki/TestingTesseract">http://code.google.com/p/tesseract-ocr/wiki/TestingTesseract</a> for more
|
|
details.</p></div>
|
|
<div class="paragraph"><p>Tesseract 3.00 adds a number of new languages, including Chinese, Japanese,
|
|
and Korean. It also introduces a new, single-file based system of managing
|
|
language data. For further details, see the file ReleaseNotes included with
|
|
the distribution.</p></div>
|
|
</div>
|
|
<h2 id="_see_also">SEE ALSO</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>tesseract(1)</p></div>
|
|
</div>
|
|
<h2 id="_copying">COPYING</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>Licensed under the Apache License, Version 2.0</p></div>
|
|
</div>
|
|
</div>
|
|
<div id="footnotes"><hr /></div>
|
|
<div id="footer">
|
|
<div id="footer-text">
|
|
Last updated 2010-09-29 19:55:57 IST
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html>
|