Drawing a rectangle around all contours in OpenCV Python

Question

i have a code which identifies contours after applying filters on video frames. Now in my case i get 3 contours and i show them by drawing rectangles around them, what i want to

Answer 1

If you want to box everything in a binary image, you can generate points from all non zero values and apply the algorithms on that. This is done as seen below:

    points = cv2.findNonZero(thresholdImage)
    rect = cv2.minAreaRect(points)