How To Install python-cv-bridge on Ubuntu 18.04

In this tutorial we learn how to install python-cv-bridge on Ubuntu 18.04. python-cv-bridge is cv_bridge ROS package - Python bindings

Introduction

In this tutorial we learn how to install python-cv-bridge on Ubuntu 18.04.

What is python-cv-bridge

python-cv-bridge is:

This package is part of Robot OS (ROS). It contains the Python interface for CvBridge, which converts between ROS Image messages and OpenCV images.

This package contains Python code.

There are three methods to install python-cv-bridge on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install python-cv-bridge Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install python-cv-bridge using apt-get by running the following command:

sudo apt-get -y install python-cv-bridge

Install python-cv-bridge Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install python-cv-bridge using apt by running the following command:

sudo apt -y install python-cv-bridge

Install python-cv-bridge 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 python-cv-bridge using aptitude by running the following command:

sudo aptitude -y install python-cv-bridge

How To Uninstall python-cv-bridge on Ubuntu 18.04

To uninstall only the python-cv-bridge package we can use the following command:

sudo apt-get remove python-cv-bridge

Uninstall python-cv-bridge And Its Dependencies

To uninstall python-cv-bridge and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove python-cv-bridge

Remove python-cv-bridge Configurations and Data

To remove python-cv-bridge configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge python-cv-bridge

Remove python-cv-bridge configuration, data, and all of its dependencies

We can use the following command to remove python-cv-bridge configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge python-cv-bridge

References

Summary

In this tutorial we learn how to install python-cv-bridge package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.