tesseract4java: Tesseract GUI

A graphical user interface for the Tesseract OCR engine. The program has been introduced in the Master’s thesis “Analyses and Heuristics for the Improvement of Optical Character Recognition Results for Fraktur Texts” by Paul Vorbach (German).

Usage

Basic usage is documented on our wiki page

Download

Binary distributions and release notes are available in the releases section.

Screenshots

Preprocessing view

Box editor for training

Glyph overview for easier detection of errors

Comparison view to compare the original document with the perceived result

Evaluation view with a transcription field

ocrevalUAtion

Batch export functionality to handle large projects

Building and running the software

This software is written in Java and can be built using Apache Maven. In order to build the software you have to follow these steps:

1. git clone https://github.com/tesseract4java/tesseract4java.git
2. cd tesseract4java
3. git submodule init
4. git submodule update
5. mvn clean package -Pstandalone. This will include the Tesseract binaries for your platform. You can manually define the platform by providing the option -Djavacpp.platform=[PLATFORM] (available platforms are windows-x86_64, windows-x86, linux-x86_64, linux-x86, and macosx-x86_64).

After you've run through all steps, the directory "gui/target" will contain the file "tesseract4java-[VERSION]-[PLATFORM].jar", which you can run by double-clicking or executing java -jar tesseract4java-[VERSION]-[PLATFORM].jar.

Credits

• This software uses the Tesseract OCR engine (APLv2.0).
• This software uses ocrevalUAtion by Rafael C. Carrasco for providing accuracy measures of the OCR results (GPLv3).
• This software uses the Silk icon set by Mark James (famfamfam.com) (CC-BY-3.0).

License

GPLv3

tesseract4java - a graphical user interface for the Tesseract OCR engine
Copyright (C) 2014-2019 Paul Vorbach

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.