how to open webcam in laptop using python code example

Example 1: access webcam using opencv

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

Example 2: how to show webcam in opencv

import cv2

cap = cv2.VideoCapture(0)

while True:
    success, img = cap.read()
    cv2.imshow("Webcam", img)
    if cv2.waitKey(1) == ord('q'):
        break