Hello, I am trying to capture a video stream from a webcam, and simultaneously display the frames, using Open CV.Previously, I have captured one image, and then at the end of my program displayed the image in a window, which works fine.Cmake command has a lot of options: choose those that better suit your needs and run the commands below.If you’re planning to use Qt 5.x, don’t use -D WITH_QT=ON.The procedures and script described below will therefore not work at least since Ubuntu 14.10!Many people are having problem with installing Open CV even from Ubuntu Software Centre.
If you have an existing ``opencv-contrib-python`` installation, run ``pip uninstall opencv-contrib-python``3. Frequently Asked Questions--------------------------**Q: Do I need to install also Open CV separately?**A: If the import fails on Windows, make sure you have `Visual C redistributable 2015 `__ might be also required.**Q: I have some other import errors?Open CV (open source computer vision) is released under a BSD license and hence it’s free for both academic and commercial use.For those who already have installed previous releases, you’ll see that, basically, nothing has changed and it’s as easy as always. -- Ubuntu 14.04 LTS 64 bits or 32 bits installed and updated; As I wrote in the pre-requirements, is always nice to have your OS updated.Then, run apt-get update and apt-get upgrade before we really start.