hello now background subtraction work on video learns from all image the background and if new shape come it is foreground , i want to detect shape , i know the shape located in the center of image +- some pixels, the backrgound is in the edges of the image +- pixels how i can use background subtraction for find the shape i want to use Gaussian mixture model such as in http://mateuszstankiewicz.eu/?p=189#comment-16981
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