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<refentry lang="en">
<refmeta>
<refentrytitle>mftraining</refentrytitle>
<manvolnum>1</manvolnum>
<refmiscinfo class="source">&nbsp;</refmiscinfo>
<refmiscinfo class="manual">&nbsp;</refmiscinfo>
</refmeta>
<refnamediv>
    <refname>mftraining</refname>
    <refpurpose>feature training for Tesseract</refpurpose>
</refnamediv>
<refsynopsisdiv id="_synopsis">
<simpara>mftraining -U <emphasis>unicharset</emphasis> -O <emphasis>lang.unicharset</emphasis> <emphasis>FILE</emphasis>&#8230;</simpara>
</refsynopsisdiv>
<refsect1 id="_description">
<title>DESCRIPTION</title>
<simpara>mftraining takes a list of .tr files, from which it generates the
files <emphasis role="strong">inttemp</emphasis> (the shape prototypes), <emphasis role="strong">shapetable</emphasis>, and <emphasis role="strong">pffmtable</emphasis>
(the number of expected features for each character).  (A fourth file
called Microfeat is also written by this program, but it is not used.)</simpara>
</refsect1>
<refsect1 id="_options">
<title>OPTIONS</title>
<variablelist>
<varlistentry>
<term>
-U <emphasis>FILE</emphasis>
</term>
<listitem>
<simpara>
        (Input) The unicharset generated by unicharset_extractor(1)
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
-F <emphasis>font_properties_file</emphasis>
</term>
<listitem>
<simpara>
        (Input) font properties file, each line is of the following form, where each field other than the font name is 0 or 1:
</simpara>
<literallayout class="monospaced">*font_name* *italic* *bold* *fixed_pitch* *serif* *fraktur*</literallayout>
</listitem>
</varlistentry>
<varlistentry>
<term>
-X <emphasis>xheights_file</emphasis>
</term>
<listitem>
<simpara>
        (Input) x heights file, each line is of the following form, where xheight is calculated as the pixel x height of a character drawn at 32pt on 300 dpi. [ That is, if base x height + ascenders + descenders = 133, how much is x height? ]
</simpara>
<literallayout class="monospaced">*font_name* *xheight*</literallayout>
</listitem>
</varlistentry>
<varlistentry>
<term>
-D <emphasis>dir</emphasis>
</term>
<listitem>
<simpara>
        Directory to write output files to.
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
-O <emphasis>FILE</emphasis>
</term>
<listitem>
<simpara>
        (Output) The output unicharset that will be given to combine_tessdata(1)
</simpara>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id="_see_also">
<title>SEE ALSO</title>
<simpara>tesseract(1), cntraining(1), unicharset_extractor(1), combine_tessdata(1),
shapeclustering(1), unicharset(5)</simpara>
<simpara><ulink url="http://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3">http://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3</ulink></simpara>
</refsect1>
<refsect1 id="_copying">
<title>COPYING</title>
<simpara>Copyright (C) Hewlett-Packard Company, 1988
Licensed under the Apache License, Version 2.0</simpara>
</refsect1>
<refsect1 id="_author">
<title>AUTHOR</title>
<simpara>The Tesseract OCR engine was written by Ray Smith and his research groups
at Hewlett Packard (1985-1995) and Google (2006-present).</simpara>
</refsect1>
</refentry>
