OpenCV图像运动模糊

def motion_blur(img, degree=10, angle=20):
    image = img.copy()
    # 这里生成任意角度的运动模糊kernel的矩阵， degree越大，模糊程度越高
    M = cv2.getRotationMatrix2D((degree / 2, degree / 2), angle, 1)
    motion_blur_kernel = np.diag(np.ones(degree))
    motion_blur_kernel = cv2.warpAffine(motion_blur_kernel, M, (degree, degree))
 
    motion_blur_kernel = motion_blur_kernel / degree
    blurred = cv2.filter2D(image, -1, motion_blur_kernel)
    # convert to uint8
    cv2.normalize(blurred, blurred, 0, 255, cv2.NORM_MINMAX)
    blurred = np.array(blurred, dtype=np.uint8)
    return blurred
 
if __name__ == '__main__':
    img = cv2.imread(r'1.jpg')
    blurred = motion_blur(img)
    cv2.imwrite(r'2.jpg', blurred)