Build and Install OpenCV 4 on Windows 10

Sorry about the mouse pointer not being recorded! This issue will be resolved in future videos. It shouldn't affect your ability to follow the steps, however.

In this tutorial, I will show you, step-by-step, how to build and install version 4 of the OpenCV library on Microsoft Windows.

Links:

[helmandollarautodiagnostic]

Very well done video buddy, step by step was very easy to follow along with. Looking forward to some more.

[vincentparkes]

Great video, knowledgeable delivery, nice pace. Please carry on and make some more. You have my thumbs up.

[Grayando]

Great tutorial, easy to follow, got further with this one than any other! one problem now, no VS files in the build folder? So I can go on to the next step... any cles boss?

[qzorn]

really nice video.. i have been using the pyimgesearch examples for the raspberry-pi and decided to go back to opencv with the visual studio 2019 version. thanks for the great info...:)

[Alex]

When I come to the part where I want to add the modules into -> OPENCV_EXTRA_MODULES_PATH, cmake crashes after entering the opencv_contrib-master path. Any ideas?

[lettomobile]

Very usefull and well done tutorial, thanks a lot!

[mohanpannirselvam]

well done sir. Like your attitute. keep doing more. you will become big

[ajelvani]

I’m stuck on and needs some help. So what exactly do I do with the install folder after I build?

[adnanalsalihi]

Nice video, i need your help.. can i build facial expression recognition program through the steps you showed here? If yes can you please recommend a video for me. Thanks a lot.. keep going

[mab]

Thanks for the guide! I am having some trouble after I include OpenCV in my codebase. I can use things like cv::Mat, but when I try to use cv::erode, I get a linker error. There seems to be more libs in build/lib/debug then are present in the install directory. Could that be the issue?

[danielletalla]

please i have a problem i install it and i can show image but not video. and i saw that many Gstreamer on cmake are missing example:GSTREAMER_app_LIBRARY-NOTFOUND, GSTREAMER_base_LIBRARY.... and in visual studio i cannot play a video because the coresponding dll are already missing. thanks if you could have a solution

[martinarraztio]

In the first debug step with vs, i have an error: LINK : fatal error LNK1104: cannot open file 'opencv_core242d.lib', what i should do?

[huypdm]

hi ! im use opencv4.4.0 and the same with opencvcontrib but when i do all step in lib i dont have any file d.lib what can i do to resolve it?

[jingyugao]

I follow your steps by Visual Studio 2019, however, something went wrong while building the INSTALL under CMake Targets
Including：“can't open vgg_generated_1 opencv_xfeatures2d20.i" etc.
Could you help me what was wrong ?

[ryfialazhar]

at 6:04, after choosing release to show the loading what we press? my release lib version is nothing in the library folder. can you help me, please?

[assafkeller]

what need to be done so it work on pycharm?

[asmazarrouk]

laptop crashed when i tried building the solution, can i skip the process ? or will it affect my installation

[niektuytel]

please use the source code of the website atm the github do not contain the include folder so will always fail

[TylerMatthewHarris]

you might need to add C:\opencv\x64\vc16\bin to your path environment variables if it can't find .dll's

[victorbuch]

So are you going to make the tutorial about how to use those files we get in the end?