Installing OpenCV 4 in Mac Os

Installing OpenCV 4 in Mac Os

1. Install Anaconda
2. Create a new environment
3. Open the new environment in the terminal
4. Run:

   conda install -c conda-forge/label/main opencv
   conda install notebook
   Jupyter notebook

5. In the notebook

   import cv2

6. Check the version with

   cv2.__version__

7. You should see something like 4.1.1

Problems when showing an image or video

If when opening an image or playing a video/camera stream it just crashes every time, then there is a simple trick to fix it, after destroying all windows sentence just add:

cv2.waitKey(1)