UNICHARSET_EXTRACTOR(1) UNICHARSET_EXTRACTOR(1)
NAME
unicharset_extractor - Reads box or plain text files to extract the
unicharset.
SYNOPSIS
unicharset_extractor [--output_unicharset filename] [--norm_mode mode]
box_or_text_file [...]
Where mode means: 1=combine graphemes (use for Latin and other simple
scripts) 2=split graphemes (use for Indic/Khmer/Myanmar) 3=pure unicode
(use for Arabic/Hebrew/Thai/Tibetan)
DESCRIPTION
Tesseract needs to know the set of possible characters it can output.
To generate the unicharset data file, use the unicharset_extractor
program on training pages bounding box files or a plain text file:
unicharset_extractor fontfile_1.box fontfile_2.box ...
The unicharset will be put into the file ./unicharset if no output
filename is provided.
NOTE Use the appropriate norm_mode based on the language.
SEE ALSO
tesseract(1), unicharset(5)
https://tesseract-ocr.github.io/tessdoc/Training-Tesseract.html
HISTORY
unicharset_extractor first appeared in Tesseract 2.00.
COPYING
Copyright (C) 2006, Google Inc. Licensed under the Apache License,
Version 2.0
AUTHOR
The Tesseract OCR engine was written by Ray Smith and his research
groups at Hewlett Packard (1985-1995) and Google (2006-present).
01/11/2023 UNICHARSET_EXTRACTOR(1)
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