OpenCV 2.4.X does not yet support Python 3 and OpenCV 3.0 is still in beta. We also need to install NumPy since the OpenCV Python bindings represent images as multi-dimensional NumPy arrays: ...

OpenCV-Install-Guidence Procedures used to configure a new fresh installed Ubuntu 18.04 LTS with support for OpenCV4 + Python 3.6. Installing OpenCV 4 (Optional) Install the java and ant if you want ...