how to capture image from webcam using opencv python code example

Example 1: how to capture an image with web cam open cv

cam = cv2.VideoCapture(0)

image = cam.read()[1]

cv2.imshow("image", image)

cv2.waitKey(0)
cv2.destroyAllWindows()

Example 2: opencv webcam python

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()