Algorithm 2. Fragment of the Python code: other conversion function with associated parameters.

def process_frame(self, frame):

self.hsv = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)

# transform into HSV color space⋯  blurred = cv2.GaussianBlur(self.hsv, (11,11), 0)

mask = cv2.inRange(blurred, self.color_low, self.color_high) # threshold mask = cv2.erode(mask, None, iterations = 2)

mask = cv2.dilate(mask, None, iterations = 2)