COMBINE_LANG_MODEL(1)

🎀 COMBINE_LANG_MODEL(1) — generate starter traineddata 🎀

okay bestie, welcome to COMBINE_LANG_MODEL(1) — yes, the manual page for combine_lang_model — and it's literally the starter-traineddata generator. training-prep main character energy, no cap ✨

💖 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).

Like, one tool instead of a whole side quest — slay, honestly 💫

✨ 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. history icon behavior 💛

🌈 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 (2006-2018).

that's the whole page, bestie — COMBINE_LANG_MODEL(1) · 2026-09-28, signing off! 🫶✨