SHAPECLUSTERING(1) SHAPECLUSTERING(1) NAME 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 tesser- act(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://tesseract-ocr.github.io/tessdoc/Training-Tesseract.html 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 (2006-2018). 08/27/2026 SHAPECLUSTERING(1)
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