slackbuilds/graphics/tesseract/README

Tesseract is a commercial quality OCR engine originally developed at
HP between 1985 and 1995. In 1995, this engine was among the top 3
evaluated by UNLV. It was open-sourced by HP and UNLV in 2005.

You will need to get one of the language packs in order to do anything
useful with tesseract, and that language pack tarball should be
present in the same directory as the SlackBuild script when the
package is created. See the website for a list of all available
language packs.  ote that you can install more than one (or even all)
of the language packs, as they do not conflict with each other. The
build script defaults to use English, but this is easily changed
by passing an alternate value on the command line: edit the LANGNAM
variable to switch to (or add) another language.