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://github.com/tesseract-ocr/tesseract/wiki/TrainingTesseract-4.00

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).

                                            02/09/2022                      COMBINE_LANG_MODEL(1)