# and start the FPS counter
print("[INFO] sampling frames from WebcamVideoStream module...")
vs = WebcamVideoStream(src=0).start()
time.sleep(2.0)
fps = FPS().start()
# loop over some frames...this time using the threaded stream
while True:
# grab the frame from the threaded video stream and resize it
# to have a maximum width of 400 pixels
frame = vs.read()
frame = imutils.resize(frame, width=400)
# update the FPS counter
fps.update()
fps._end = datetime.datetime.now()
# print(fps.fps())
cv2.putText(frame, str(fps.fps()), (50, 200), cv2.FONT_HERSHEY_SIMPLEX,
3, (0, 0, 255), 10)
cv2.imshow("Frame", frame)
key = cv2.waitKey(1) & 0xFF
if key == ord("q"):
break
except KeyboardInterrupt:
# stop the timer and display FPS information
fps.stop()
print("[INFO] elasped time: {:.2f}".format(fps.elapsed()))
print("[INFO] approx. FPS: {:.2f}".format(fps.fps()))
