Docker for Ubuntu 16.04 vs OpenCV 3.4.2 and Python 3.5

Usage:

To build :

    docker build -t opencv-ubuntu16 .

To run :

    docker run -it opencv-ubuntu16 python3.5

To use with ubuntu :

    docker run -it opencv-ubuntu16

List of available docker tags:

• opencv-3.4.2
• contrib-opencv-3.4.2