shapeclustering man page

shapeclustering — shape clustering training for Tesseract

Synopsis

shapeclustering -D output_dir -U unicharset -O mfunicharset -F font_props -X xheights FILE...

Description

shapeclustering(1) takes extracted feature .tr files (generated by tesseract(1) run in a special mode from box files) and produces a file shapetable and an enhanced unicharset. This program is still experimental, and is not required (yet) for training Tesseract.

Options

-U FILE

The unicharset generated by unicharset_extractor(1).

-D dir

Directory to write output files to.

-F font_properties_file

(Input) font properties file, where 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'
-O FILE

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

See Also

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

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

Copying

Copyright (C) Google, 2011 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).

Referenced By

cntraining(1), mftraining(1).

06/12/2015