import cv2
#reading the image
#image = cv2.imread("demo.jpeg")

def detectObjects(image):
	edged = cv2.Canny(image, 10, 250)
	cv2.imshow("Edges", edged)
	cv2.waitKey(0)

	#applying closing function
	kernel = cv2.getStructuringElement(cv2.MORPH_RECT, (7, 7))
	closed = cv2.morphologyEx(edged, cv2.MORPH_CLOSE, kernel)
	cv2.imshow("Closed", closed)
	cv2.waitKey(0)

	#finding_contours
	(_, cnts, _) = cv2.findContours(closed.copy(), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)

	for c in cnts:
		peri = cv2.arcLength(c, True)
		approx = cv2.approxPolyDP(c, 0.02 * peri, True)
		cv2.drawContours(image, [approx], -1, (0, 255, 0), 2)
	cv2.imshow("Output", image)
	cv2.waitKey(0)