1import cv2
 2#reading the image
 3#image = cv2.imread("demo.jpeg")
 4
 5def detectObjects(image):
 6	edged = cv2.Canny(image, 10, 250)
 7	cv2.imshow("Edges", edged)
 8	cv2.waitKey(0)
 9
10	#applying closing function
11	kernel = cv2.getStructuringElement(cv2.MORPH_RECT, (7, 7))
12	closed = cv2.morphologyEx(edged, cv2.MORPH_CLOSE, kernel)
13	cv2.imshow("Closed", closed)
14	cv2.waitKey(0)
15
16	#finding_contours
17	(_, cnts, _) = cv2.findContours(closed.copy(), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
18
19	for c in cnts:
20		peri = cv2.arcLength(c, True)
21		approx = cv2.approxPolyDP(c, 0.02 * peri, True)
22		cv2.drawContours(image, [approx], -1, (0, 255, 0), 2)
23	cv2.imshow("Output", image)
24	cv2.waitKey(0)