import cv2

cap = cv2.VideoCapture(0)
if not cap.isOpened():
    print("Error: Opening webcam!")

while True:
    ret, frame = cap.read()
    if ret is False:
        continue
    frame = cv2.resize(frame, None, fx=0.5, fy=0.5, interpolation=cv2.INTER_AREA)
    cv2.imshow("Cap", frame)

    c = cv2.waitKey(1)
    if c == 27:
        break

cap.release()
cv2.destroyAllWindows()
