How to install OpenCV on Raspberry Pi 4 | Raspberry Pi Tutorials for Beginners (2020)

In this video, we are going to learn how to install Opencv on Raspberry Pi. Usually, this can be done with the python package manager pip but in most cases, the pip install does not work properly with OpenCV on raspberry pi. Therefore we have to install from source. In this video, we will go through all the steps required to install OpenCV from the source.

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Code and Files:
In "Rasberry Pi Installation and First Run" Section

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[murtazasworkshop]

If you are getting stuck at the 18th step try keeping you pi cool and use 'make -j1' instead

[aiforyounow]

Sir thanks a lot am now adding computer vision to my electrical engineering knowledge

[tmytun]

Thanks very much for this, finally got OpenCv working after a weeks worth of attempts using your guide - it's amazing how much just useless information there is out there on this subject - much of it just plain wrong. A couple of points to add which wasn't immediately clear on your video - (1) The programme which is shown at the end - Mu - is found by going to the Raspberry Pi icon on the Pi screen and then to preferences - then recommended software - Mu can be found and downloaded from there. And (2) - make sure that after you've had to reload the entire operating Os again onto the micro SD card, which I had to do three times after being comprehensively stuffed by following nonsense on other sites - make sure you enable the Pi camera again. Took me ages to work out why I wasn't seeing anything after downloading everything. Cheers and thanks again !

[JTRotter]

I agree, after so many failed tries, finally this works! Thank you Sir!

[qzorn]

i usually install opencv at a local coffee shop, so i don't calculate the process in hours i go by cups of coffee and snacks. :) the pi is wired and so am i...

[techconsultingsolutions]

When I am trying to execut 'make -j4' , I am getting error "make: *** No targets specified and no makefile found. Stop."
I am inside 'build' directory. any pointers?
Thanks

[burgerking]

Works great. Only had to change version numbers and complete the path to the github links.

[achyuth_krishna]

stuck at the 18th step, make-j4 and make-j1 doesn't work. Any help appreciated

[baptistetexier]

for all, installing raspios in a 16Go µsd card is not enough.... minimum is 32Go... thanks for your precious help Murtaza !!!!

[cristianfernandopupialesor]

Muchas gracias. Funciona super bien. Saludos

[asyrahshahierah]

Hi, you are using webcam or raspi camera?

[sakdisedkhamma]

it really work on rasp pi 4B, thanks bro !

[moonlightericchien]

Thanks for your great video. And do you have an introduction about mediapipe installing on raspberry pi?

[lukmanchaiyarab]

Hi everone, i like to ask for helo. thr Cmake is not found in raspberry pi? haw can i sloved this problem ? thank you

[syahidanarrizaldysidik]

what's different between installing opencv using this method and just put sudo pip3 install opencv-contrib-python on terminal. Thank you and sorry for my english :)

[ongqiuxi]

CMake Error at (message):
OpenCV 4.x requires C++11

[YazeedAlkosai]

great work, what type of camera you use to capture the object using OpenCV, any advice and I am trying to build the OpenCV to raspberry pi 4 which version I should use thanks in advance Dr.murtaza

[dasunsrimal]

Can i install it raspberry pi 3 B + model

[symphonymusic]

I am not able to install libraries from step 2....Brother can you help you.

[joshuachan]

great video, but why is that no sound at all? only the from 3mins got sounds, is that my problem or the video?