Before you proceed with this recipe, you need to install the OpenCV 3.x Python API package and the matplotlib package. OpenCV must be built with contrib modules, because the tracking API isn't a part of the main OpenCV repo.
Before you proceed with this recipe, you need to install the OpenCV 3.x Python API package and the matplotlib package. OpenCV must be built with contrib modules, because the tracking API isn't a part of the main OpenCV repo.