mirror of
https://github.com/tesseract-ocr/tesseract.git
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0f9d507740
The last contribution from Google was in 2018
(see commit ce88adbf32).
Signed-off-by: Stefan Weil <sw@weilnetz.de>
72 lines
2.9 KiB
Plaintext
72 lines
2.9 KiB
Plaintext
COMBINE_LANG_MODEL(1)
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=====================
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:doctype: manpage
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NAME
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----
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combine_lang_model - generate starter traineddata
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SYNOPSIS
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--------
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*combine_lang_model* --input_unicharset 'filename' --script_dir 'dirname' --output_dir 'rootdir' --lang 'lang' [--lang_is_rtl] [pass_through_recoder] [--words file --puncs file --numbers file]
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DESCRIPTION
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-----------
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combine_lang_model(1) generates a starter traineddata file that can be used to train an LSTM-based neural network model. It takes as input a unicharset and an optional set of wordlists. It eliminates the need to run set_unicharset_properties(1), wordlist2dawg(1), some non-existent binary to generate the recoder (unicode compressor), and finally combine_tessdata(1).
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OPTIONS
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-------
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'--lang lang'::
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The language to use.
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Tesseract uses 3-character ISO 639-2 language codes. (See LANGUAGES)
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'--script_dir PATH'::
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Directory name for input script unicharsets. It should point to the location of langdata (github repo) directory. (type:string default:)
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'--input_unicharset FILE'::
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Unicharset to complete and use in encoding. It can be a hand-created file with incomplete fields. Its basic and script properties will be set before it is used. (type:string default:)
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'--lang_is_rtl BOOL'::
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True if language being processed is written right-to-left (eg Arabic/Hebrew). (type:bool default:false)
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'--pass_through_recoder BOOL'::
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If true, the recoder is a simple pass-through of the unicharset. Otherwise, potentially a compression of it by encoding Hangul in Jamos, decomposing multi-unicode symbols into sequences of unicodes, and encoding Han using the data in the radical_table_data, which must be the content of the file: langdata/radical-stroke.txt. (type:bool default:false)
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'--version_str STRING'::
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An arbitrary version label to add to traineddata file (type:string default:)
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'--words FILE'::
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(Optional) File listing words to use for the system dictionary (type:string default:)
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'--numbers FILE'::
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(Optional) File listing number patterns (type:string default:)
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'--puncs FILE'::
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(Optional) File listing punctuation patterns. The words/puncs/numbers lists may be all empty. If any are non-empty then puncs must be non-empty. (type:string default:)
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'--output_dir PATH'::
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Root directory for output files. Output files will be written to <output_dir>/<lang>/<lang>.* (type:string default:)
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HISTORY
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-------
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combine_lang_model(1) was first made available for tesseract4.00.00alpha.
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RESOURCES
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---------
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Main web site: <https://github.com/tesseract-ocr> +
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Information on training tesseract LSTM: <https://tesseract-ocr.github.io/tessdoc/TrainingTesseract-4.00.html>
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SEE ALSO
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--------
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tesseract(1)
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COPYING
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-------
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Copyright \(C) 2012 Google, Inc.
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Licensed under the Apache License, Version 2.0
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AUTHOR
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------
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The Tesseract OCR engine was written by Ray Smith and his research groups
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at Hewlett Packard (1985-1995) and Google (2006-2018).
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