How To Install OpenCV 4 for Python on Ubuntu Linux

In this video on OpenCV Python Tutorial For Beginners, I am going to show How to Install OpenCV on Ubuntu 18.04 Linux with Python.

Install PIP3
$ sudo apt update
$ sudo apt install python3-pip

To install OpenCV Via PIP give the following command
$ pip install opencv-python

Test OpenCV Installation
$ python3
import cv2
print(cv2.__version__)
'4.0.0'

pip is a package management system used to install and manage software packages written in Python.
OpenCV is an image processing library created by Intel and later supported by Willow Garage and now maintained by Itseez. opencv is available on Mac, Windows, Linux. Works in C, C++, and Python.
it is Open Source and free. opencv is easy to use and install.

Starting with an overview of what the course will be covering, we move on to discussing morphological operations and practically learn how they work on images. We will then learn contrast enhancement using equalization and contrast limiting. Finally we will learn 3 methods to subtract the background from the video and implement them using OpenCV.

At the end of this course, you will have a firm grasp of Computer Vision techniques using OpenCV libraries. This course will be your gateway to the world of data science.

Feel the real power of Python and programming! The course offers you a unique approach of learning how to code by solving real world problems.

#ProgrammingKnowledge #ComputerVision #OpenCV
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[philinnc]

Thanks much for this! Had resigned myself to having to build opencv from source, the hard way. This was literally the first guide I found to doing it with pip.

[sharqahameed]

Thank you so much. I can work on opencv after struggling with its installation from 4 hours.

[farroszain]

Thanks ! Still work on Ubuntu and already installed opencv 4.5.1

[quanghuyiep]

thank you so much. your instruction is much simpler than installation guide which is step by step in manual of Open CV.

[paulplayai]

04:48
sudo apt install python3-pip

pip3 --version

pip3 install opencv-python

python3

import cv2
cv2.__version__

[SOGHIH]

Perfect, thank you! -runing Linux Mint 5.0.0-32

[johnsabini]

This is a very good solid tutorial on installation. It is as good or better than the opencv org's tutorial.

[Zeuscrypto]

hello thank you very much for the tutorial it helped me to install it more simply opencv

[mihirgupta]

Thank you so Dont know what bs method they were showing in other places

[robdavidson]

Thank you so much!! This has been so helpful!

[bldabirum]

pip3 install opencv-python --user

(The parameter --user was necessary in my case)

[ivohpineda]

great help, thanks a lot and fixed my problem.

[arnoldguarinramirez]

Thank you very much sir, it really worked.

[AlexShoyhit]

thank you
very good explanation and easy

[devikarajan]

I followed all your steps but showing no module named cv2.What should i do?

[NavtanBhanderi]

can we capture automatic image after some seconds using python cv?

[ajaytak]

the terminal shows no module named skbuild in the second method plz help

[kalilinux]

Please, guide me to instaii open cv- python on kali linux 2021.1

[harold]

help ! getting this error when trying to update to opencv 4 ----Could not find a version that satisfies the requirement opencv-python.

[harsh-haria]

what is the command for opencv-contrib ?
not the new version the old one!
thanks in advance