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.\"     Title: combine_lang_model
.\"    Author: [see the "AUTHOR" section]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 01/21/2019
.\"    Manual: \ \&
.\"    Source: \ \&
.\"  Language: English
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.TH "COMBINE_LANG_MODEL" "1" "01/21/2019" "\ \&" "\ \&"
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.SH "NAME"
combine_lang_model \- generate starter traineddata
.SH "SYNOPSIS"
.sp
\fBcombine_lang_model\fR \-\-input_unicharset \fIfilename\fR \-\-script_dir \fIdirname\fR \-\-output_dir \fIrootdir\fR \-\-lang \fIlang\fR [\-\-lang_is_rtl] [pass_through_recoder] [\-\-words file \-\-puncs file \-\-numbers file]
.SH "DESCRIPTION"
.sp
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)\&.
.SH "OPTIONS"
.PP
\fI\-l lang\fR
.RS 4
The language to use\&. Tesseract uses 3\-character ISO 639\-2 language codes\&. (See LANGUAGES)
.RE
.PP
\fI\-\-script_dir PATH\fR
.RS 4
Directory name for input script unicharsets\&. It should point to the location of langdata (github repo) directory\&. (type:string default:)
.RE
.PP
\fI\-\-input_unicharset FILE\fR
.RS 4
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:)
.RE
.PP
\fI\-\-lang_is_rtl BOOL\fR
.RS 4
True if language being processed is written right\-to\-left (eg Arabic/Hebrew)\&. (type:bool default:false)
.RE
.PP
\fI\-\-pass_through_recoder BOOL\fR
.RS 4
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)
.RE
.PP
\fI\-\-version_str STRING\fR
.RS 4
An arbitrary version label to add to traineddata file (type:string default:)
.RE
.PP
\fI\-\-words FILE\fR
.RS 4
(Optional) File listing words to use for the system dictionary (type:string default:)
.RE
.PP
\fI\-\-numbers FILE\fR
.RS 4
(Optional) File listing number patterns (type:string default:)
.RE
.PP
\fI\-\-puncs FILE\fR
.RS 4
(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:)
.RE
.PP
\fI\-\-output_dir PATH\fR
.RS 4
Root directory for output files\&. Output files will be written to <output_dir>/<lang>/<lang>\&.* (type:string default:)
.RE
.SH "HISTORY"
.sp
combine_lang_model(1) was first made available for tesseract4\&.00\&.00alpha\&.
.SH "RESOURCES"
.sp
Main web site: \m[blue]\fBhttps://github\&.com/tesseract\-ocr\fR\m[] Information on training tesseract LSTM: \m[blue]\fBhttps://github\&.com/tesseract\-ocr/tesseract/wiki/TrainingTesseract\-4\&.00\fR\m[]
.SH "SEE ALSO"
.sp
tesseract(1)
.SH "COPYING"
.sp
Copyright (C) 2012 Google, Inc\&. Licensed under the Apache License, Version 2\&.0
.SH "AUTHOR"
.sp
The Tesseract OCR engine was written by Ray Smith and his research groups at Hewlett Packard (1985\-1995) and Google (2006\-present)\&.