opencv webcam python

                                    import cv2

cap = cv2.VideoCapture(0)

while True:
  ret, frame = cap.read()
  
  cv2.imshow('webcam feed' , frame)
  if cv2.waitKey(1) & 0xFF == ord(' '):
    break
    
cap.release()
cv2.destroyAllWindows()

#by using the spacebar you will be able to finish the process of video capturing
#in opencv and the window will close

                                    import numpy as np
import cv2

cap = cv2.VideoCapture(0)

while(True):
    # Capture frame-by-frame
    ret, frame = cap.read()

    # Our operations on the frame come here
    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)

    # Display the resulting frame
    cv2.imshow('frame',gray)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

# When everything done, release the capture
cap.release()
cv2.destroyAllWindows()

                                    import cv2
frameWidth = 640
frameHeight = 480
cap = cv2.VideoCapture(0)
cap.set(3, frameWidth)
cap.set(4, frameHeight)
cap.set(10,150)
while True:
    success, img = cap.read()
    cv2.imshow("Result", img)
    if cv2.waitKey(1) and 0xFF == ord('q'):
        break