mftraining - Man Page

feature training for Tesseract

Synopsis

mftraining -U unicharset -O lang​.unicharset FILE​...

Description

mftraining takes a list of ​.tr files, from which it generates the files inttemp (the shape prototypes), shapetable, and pffmtable (the number of expected features for each character)​. (A fourth file called Microfeat is also written by this program, but it is not used​.)

Options

-U FILE

(Input) The unicharset generated by unicharset_extractor(1)

-F font_properties_file

(Input) font properties file, each line is of the following form, where each field other than the font name is 0 or 1:

*font_name* *italic* *bold* *fixed_pitch* *serif* *fraktur*
-X xheights_file

(Input) x heights file, each line is of the following form, where xheight is calculated as the pixel x height of a character drawn at 32pt on 300 dpi​. [ That is, if base x height + ascenders + descenders = 133, how much is x height? ]

*font_name* *xheight*
-D dir

Directory to write output files to​.

-O FILE

(Output) The output unicharset that will be given to combine_tessdata(1)

See Also

tesseract(1), cntraining(1), unicharset_extractor(1), combine_tessdata(1), shapeclustering(1), unicharset(5)

https://tesseract-ocr​.github​.io/tessdoc/Training-Tesseract​.html

Copying

Copyright (C) Hewlett-Packard Company, 1988 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)​.

Info

09/21/2026