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annotate mupdf-source/thirdparty/tesseract/doc/shapeclustering.1.asc @ 21:2f43e400f144

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Provide an "all" target to build both the sdist and the wheel
author Franz Glasner <fzglas.hg@dom66.de>
date Fri, 19 Sep 2025 10:28:53 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 SHAPECLUSTERING(1)
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2 ==================
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3 :doctype: manpage
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5 NAME
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6 ----
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7 shapeclustering - shape clustering training for Tesseract
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9 SYNOPSIS
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10 --------
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11 shapeclustering -D 'output_dir'
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12 -U 'unicharset' -O 'mfunicharset'
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13 -F 'font_props' -X 'xheights'
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14 'FILE'...
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16 DESCRIPTION
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17 -----------
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18 shapeclustering(1) takes extracted feature .tr files (generated by
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19 tesseract(1) run in a special mode from box files) and produces a
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20 file *shapetable* and an enhanced unicharset. This program is still
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21 experimental, and is not required (yet) for training Tesseract.
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23 OPTIONS
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24 -------
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25 -U 'FILE'::
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26 The unicharset generated by unicharset_extractor(1).
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28 -D 'dir'::
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29 Directory to write output files to.
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31 -F 'font_properties_file'::
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32 (Input) font properties file, where each line is of the following form, where each field other than the font name is 0 or 1:
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34 'font_name' 'italic' 'bold' 'fixed_pitch' 'serif' 'fraktur'
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36 -X 'xheights_file'::
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37 (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? ]
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39 'font_name' 'xheight'
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41 -O 'FILE'::
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42 The output unicharset that will be given to combine_tessdata(1).
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44 SEE ALSO
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46 tesseract(1), cntraining(1), unicharset_extractor(1), combine_tessdata(1),
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47 unicharset(5)
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49 <https://tesseract-ocr.github.io/tessdoc/Training-Tesseract.html>
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51 COPYING
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52 -------
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53 Copyright \(C) Google, 2011
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54 Licensed under the Apache License, Version 2.0
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56 AUTHOR
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57 ------
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58 The Tesseract OCR engine was written by Ray Smith and his research groups
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59 at Hewlett Packard (1985-1995) and Google (2006-2018).