How to access video using Python Open CV?

Champak’s World: Open CV is the Open Computer Vision Library. Originally developed in C++ it is free, well documented and very valuable. We used it in Matlab originally, it is available as CV2 module in Python. Image Processing, Video Processing, Face Recognition, Boundary Detection and many more utilities are available here.

This is my first post on Video Access using CV2 which accesses the Web Camera on your laptop.