tesseract/doc/unicharset_extractor.1.asc

48 lines
1.3 KiB
Plaintext
Raw Normal View History

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 (2006-2018).