correct_camera_timer.py

import cv2 

import time 

  

# SET THE COUNTDOWN TIMER 



TIMER = int(5) 

   

# Open the camera 

cap = cv2.VideoCapture(0)  

  

while True: 

      

    # Read and display each frame 

    ret, img = cap.read()

    img1=cv2.flip(img,1) 

    cv2.imshow('camera', img1) 

  

    # check for the key pressed 

    k = cv2.waitKey(125)

       

    # set the key for the countdown 

    # to begin. Here we set c 

    if k == ord('c'): 

        prev = time.time() 

  

        while TIMER >= 0: 

            ret, img = cap.read()

            img1=cv2.flip(img,1) 

  

            # Display countdown on each frame 

            # specify the font and draw the 

            # countdown using puttext 

            font = cv2.FONT_HERSHEY_SIMPLEX 

            cv2.putText(img1, str(TIMER),  

                        (200, 250), font, 

                        7, (0, 255, 255), 

                        4, cv2.LINE_AA) 

            cv2.imshow('camera', img1) 

            cv2.waitKey(125) 

  

            # current time 

            cur = time.time() 

  

            # Update and keep track of Countdown 

            # if time elapsed is one second  

            # than decrese the counter 

            if cur-prev >= 1: 

                prev = cur 

                TIMER = TIMER-1

  

        else: 

            ret, img = cap.read()

            img1=cv2.flip(img,1) 

  

            # Display the clicked frame for 2  

            # sec.You can increase time in  

            # waitKey also 

            cv2.imshow('camera', img1) 

  

            # time for which image displayed 

            cv2.waitKey(2000) 

  

            # Save the frame 

            cv2.imwrite('camera.jpg', img1) 

            

            # HERE we can reset the Countdown timer 

            # if we want more Capture without closing 

            # the camera 

  

    # Press Esc to exit 

    elif k == 27: 

        break

  

# close the camera 

cap.release() 

   

# close all the opened windows 

cv2.destroyAllWindows()