How To Install ocrad on Ubuntu 22.04
Introduction
In this tutorial we learn how to install ocrad on Ubuntu 22.04.
What is ocrad
ocrad is:
GNU Ocrad is an OCR (Optical Character Recognition) program based on a feature extraction method. It reads a bitmap image in pgm/pbm format and produces text in byte (8-bit) or UTF-8 formats.
Ocrad includes a layout analyzer able to separate the columns or blocks of text normally found on printed pages.
This package includes the command-line tool.
There are three methods to install ocrad on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install ocrad Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install ocrad using apt-get by running the following command:
sudo apt-get -y install ocrad
Install ocrad Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install ocrad using apt by running the following command:
sudo apt -y install ocrad
Install ocrad Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install ocrad using aptitude by running the following command:
sudo aptitude -y install ocrad
How To Uninstall ocrad on Ubuntu 22.04
To uninstall only the ocrad package we can use the following command:
sudo apt-get remove ocrad
Uninstall ocrad And Its Dependencies
To uninstall ocrad and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:
sudo apt-get -y autoremove ocrad
Remove ocrad Configurations and Data
To remove ocrad configuration and data from Ubuntu 22.04 we can use the following command:
sudo apt-get -y purge ocrad
Remove ocrad configuration, data, and all of its dependencies
We can use the following command to remove ocrad configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge ocrad
References
Summary
In this tutorial we learn how to install ocrad package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.