This repository contains scripts and definition of Docker container that helps to compile Tesseract 4. If you are looking for ready to use Teserract 4 Runtime Environment container (and don't want to compile it) please take look at tesseractshadow/tesseract4re.

If you are not familiar with Docker please read Docker - Get Started. This compilation procedure is based on:

• Compilation Guide for Linux
• and Building Leptonica Guide

Prerequisites:

• Install Docker
• Download and unzip this repository

Scripted steps (tested as a root sudo su):

1. ./scripts/1-pull-container.sh - pull tesseractshadow/tesseract4cmp image from Docker Hub (automated build using dockerfile from this repository).
2. ./scripts/2-remove-container.sh - (optional) remove t4cmp if it already exists and you want to start from begining (note, all compilation results stored inside container will be lost).
3. ./scripts/3-run-new-container.sh - run the new t4cmp container.
4. ./scripts/4-update-src.sh - update source code of Leptionica and Tesseract.
5. ./scripts/5-compile-src.sh - compile Leptionica and Tesseract, it may take tens of minutes
6. ./scripts/6-test-ocr.sh - do some OCR tests
7. ./scripts/7-build-pkg.sh - (optional) build Leptionica and Tesseract packages and copy them outside t4cmp container

1. Clone this repository to your $T4_WORKSPACE
2. Execute docker build -t tesseractshadow/tesseract4cmp $T4_WORKSPACE (or ./dockerfile.build.sh)

You can get into the container using SSH:

• localhost:4022,
• user: root,
• password: root