from imutils.video import FPS import cv2 # initialize the camera and start the video stream camera = cv2.VideoCapture(0) # initialize the FPS counter fps = FPS().start() # loop over the frames from the video stream while True: # grab the current frame and resize it _, frame = camera.read() frame = imutils.resize(frame, width=500) # update the FPS counter fps.update() # display the current FPS count on the output frame cv2.putText(frame, "FPS: {:.2f}".format(fps.fps()), (10, 30), cv2.FONT_HERSHEY_SIMPLEX, 0.8, (0, 255, 0), 2) # show the output frame cv2.imshow("Frame", frame) key = cv2.waitKey(1) & 0xFF # if the 'q' key is pressed, stop the loop if key == ord("q"): break # stop the FPS counter and release the camera fps.stop() camera.release() cv2.destroyAllWindows()In this example, we first import the `FPS` module from the `imutils.video` package and the `cv2` module from the OpenCV library. We then initialize the camera and start the video stream. Next, we create a `FPS` object and start the FPS counter. We then loop over the frames in the video stream, update the FPS counter for each frame, and display the current FPS count on the output frame. Finally, we stop the FPS counter and release the camera. Overall, the imutils.video FPS update module is a useful package library for measuring and displaying the FPS count in a video stream.