Stream live video directly from external camera to Python. Exit with 'Q' key.

CaptureVideoFromCamera.py

import cv2, time

#1. Create an object. Zero for external camera
video=cv2.VideoCapture(0)

#7. Play the video (Indenting)

#8. a variable
a=0

while True:
    a = a + 1
    #3. Create a frame object
    check, frame = video.read()

    print(check)
    print(frame) #Reresenting image

    #6. Converting to Graycolor
    gray=cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)

    #time.sleep(3)

    #4. Show the frame
    #cv2.imshow("Capturing", frame)
    #6.1.
    cv2.imshow("Capturing", gray)


    #5. For press any key to out (miliseconds)
    #cv2.waitKey(0)
    
    #7. For playing
    key=cv2.waitKey(1)
    
    if key == ord('q'):
        break

print(a)
#2. Shut down the camera
video.release()

cv2.destroyAllWindows