In this tutorial, we will show you how to install OpenCV on Ubuntu 20.04 LTS. For those of you who didn’t know, OpenCV (Open Source Computer Vision Library) is an open-source, highly optimized computer library mainly used in applications for image processing. It has a variety of inbuilt image processing functions helping you to get started easily. It runs on Linux, Windows, Mac OS, iOS, and Android.
This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘
sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of OpenCV on a Ubuntu 20.04 (Focal Fossa) server.
- A server running one of the following operating systems: Ubuntu 20.04, 18.04, 16.04, and any other Debian-based distribution like Linux Mint.
- It’s recommended that you use a fresh OS install to prevent any potential issues.
non-root sudo useror access to the
root user. We recommend acting as a
non-root sudo user, however, as you can harm your system if you’re not careful when acting as the root.
Install OpenCV on Ubuntu 20.04 LTS Focal Fossa
Step 1. First, make sure that all your system packages are up-to-date by running the following
apt commands in the terminal.
sudo apt update sudo apt upgrade
Step 2. Installing OpenCV on Ubuntu 20.04.
OpenCV is available for installation from the default Ubuntu 20.04 repositories. Run the following command to install it:
sudo apt install libopencv-dev python3-opencv
To verify the installation Python cv2 run:
python3 -c "import cv2; print(cv2.__version__)"
If you get results printed out without any errors, it means you have successfully installed OpenCV on Ubuntu 20.04.
Congratulations! You have successfully installed OpenCV. Thanks for using this tutorial for installing OpenCV on Ubuntu 20.04 LTS Focal Fossa systems. For additional help or useful information, we recommend you to check the official OpenCV website.