import cv2

if __name__ == '__main__':
    capture_camera()

def capture_camera(mirror=True, size=None):
    """Capture video from camera"""
    cap = cv2.VideoCapture(0)
    while True:
        ret, frame = cap.read()
        if mirror is True:
            frame = frame[:,::-1]
        if size is not None and len(size) == 2:
            frame = cv2.resize(frame, size)
        cv2.imshow('camera capture', frame)
        k = cv2.waitKey(1)
        if k == 27:
            break
    cap.release()
    cv2.destroyAllWindows()

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