def precess_image(image):
    '''
    Graying and GaussianBlur
    :param image: The image matrix,np.array
    :return: The processed image matrix,np.array
    '''
    gray_image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
    gray_image = cv2.GaussianBlur(gray_image, (3, 3), 0)
    return gray_image

    Graying and GaussianBlur
    :param image: The image matrix,np.array
    :return: The processed image matrix,np.array
    
src/aios/utils/video_utils.py