In this OpenCV with Python tutorial, we're going to be covering how to reduce the background of images, by detecting motion. This is going to require us to re-visit the use of video, or to have two images, one with the absense of people/objects you want to track, and another with the objects/people there. You can use your webcam if you like.
text-based tutorial and sample code: https://pythonprogramming.net/mog-background-reduction-python-opencv-tutorial/
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