How to Install OpenCV on Windows | OpenCV Python Tutorial | Setting up Computer Vision

Key Takeaways

[Music] what's going on guys it's the AI guy and welcome back to another video in today's video we're gonna go over installing open CV on Windows for Python for those of you who aren't familiar with open CV I'll just give a brief overview of it so open CV or open source computer vision is a library for computer vision and machine learning that contains over 2,500 optimized algorithms so basically it's a massive library of functions used on images and videos that allow you to accelerate your use of computer vision through classic and state-of-the-art algorithms that you don't have to hand code yourself it's most popularly popularly used for facial detection identifying objects within images or videos tracking camera movements and a bunch more it's used by massive tech companies all over the industry like Google Microsoft Intel IBM Sony and many many more and today I'm going to show you how to install it on your machine in today's video we are going to pip install OpenCV for Python then import cb2 and print its version to verify that we've installed and fetched OpenCV properly and I'm going to show you how to do this in both the command prompt and Python script to give you a little flexibility so let's get right into the video if you're new to my channel feel free to hit the like and subscribe button it would mean a lot to me I post content like this weekly so I hope you enjoy it let's get into it so first things first you're gonna want to go ahead and open up a command prompt so we already under your type to search and type in command prompt to open it up and this I will mention that there are is a prerequisite for this tutorial you do have to have Python already installed so if you don't have Python installed hop over on over to my previous video on how to set up a machine learning ai environment where I walk through installing Python and Visual Studio code and then come back here so if you do have Python already ins this is a very simple tutorial first things first is we're gonna want a pip install OpenCV for python so just type in pip install open CV - Python and that's gonna go ahead and collect Python as you can see it also looks for prerequisite in numpy so if you don't already have numpy it'll actually install numpy as well for you so perfect I've got open CV Python version 4.1.1 and verify that that is indeed installed on my machine so what you're gonna do is just go ahead and type Python so now it opens up your Python version and you can start to program in Python so you're just going to go import CV - which is a version of open CV enter and it's gonna go ahead and import it and if you got an error here it means I did not install correctly since it went to a new line and no no error I'm gonna check to see if it installed correctly so I'm going to go to print C v2 dot underscore underscore version underscore underscore close bracket and if that failed and you got an error it would give you a warning or an error message but since I've successfully installed open CV it prints my version 4.1.1 so it's as simple as that for the command prompt and now let me hop over to my visual studio code and show you how to do it exactly the same way in a python script so for the second way of completing this tutorial and a code editor you're going to want to go ahead and open your code editor i'm using vs code they like it cuz it's lightweight so you're going to want to just create a file I've created mine OpenCV tutorial PI it's gonna have to be a PI so that can be a Python script we can run it and then you're gonna want to open up a terminal so click on terminal new terminal and then you're gonna go ahead and do the exact same command as before pip install OpenCV - python it's going to go ahead and collect it it gets the same version 4.1.10 and do our two lines import tv2 and print c v2 dot underscore underscore reversion underscore underscore you're going to go ahead and save and then just right-click on the screen and go run Python file in terminal and you're going to go ahead and see that it prints 4.1.1 so this quick version check of cv two is enough to verify that it is correctly pip installed and that you can now go ahead and start using one of those 2500 algorithms that OpenCV has within it so i hope you guys enjoyed this video that's all for today if you want to see more videos go ahead and like this video smash that like button it's greatly appreciated and I'll see you guys next time [Music]