# CLASSIFIER_TESTER(1) Manual Page

## NAME

classifier_tester - for *legacy tesseract* engine.

## SYNOPSIS

classifier_tester -U unicharset_file -F font_properties_file -X xheights_file -classifier x -lang lang [-output_trainer trainer] *.tr

## DESCRIPTION

classifier_tester(1) runs Tesseract in a special mode. It takes a list of .tr files and tests a character classifier on data as formatted for training, but it doesn’t have to be the same as the training data.

## IN/OUT ARGUMENTS

a list of .tr files

## OPTIONS

-l lang

  (Input) three character language code; default value eng.

-classifier x

  (Input) One of "pruner", "full".

-U unicharset

  (Input) The unicharset for the language.

-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*

-output_trainer trainer

  (Output, Optional) Filename for output trainer.

## 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).