how to cache Background subtraction data for later usage?

Question

background subtraction methods in OpenCV usually take a while to get the foreground correct. is there any way to cache data of these methods and use them later? (preferred in Python)

Answer 1

Yes, I believe so. The cv::BackgroundSubtractor derives from cv::Algorithm, which supports read(), save(), and write(). specific BackgroundSubtractor subclasses should have implemented those methods.

These methods should be exposed in the Python API; the docs mention Python signatures.