COMBINE_LANG_MODEL(1) COMBINE_LANG_MODEL(1)
NAME
combine_lang_model - generate starter traineddata
SYNOPSIS
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]
DESCRIPTION
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).
OPTIONS
--lang lang
The language to use. Tesseract uses 3-character ISO 639-2 language
codes. (See LANGUAGES)
--script_dir PATH
Directory name for input script unicharsets. It should point to the
location of langdata (github repo) directory. (type:string
default:)
--input_unicharset FILE
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:)
--lang_is_rtl BOOL
True if language being processed is written right-to-left (eg
Arabic/Hebrew). (type:bool default:false)
--pass_through_recoder BOOL
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)
--version_str STRING
An arbitrary version label to add to traineddata file (type:string
default:)
--words FILE
(Optional) File listing words to use for the system dictionary
(type:string default:)
--numbers FILE
(Optional) File listing number patterns (type:string default:)
--puncs FILE
(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:)
--output_dir PATH
Root directory for output files. Output files will be written to
<output_dir>/<lang>/<lang>.* (type:string default:)
HISTORY
combine_lang_model(1) was first made available for
tesseract4.00.00alpha.
RESOURCES
Main web site: https://github.com/tesseract-ocr Information on training
tesseract LSTM:
https://tesseract-ocr.github.io/tessdoc/TrainingTesseract-4.00.html
SEE ALSO
tesseract(1)
COPYING
Copyright (C) 2012 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 COMBINE_LANG_MODEL(1)
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