r 轮(2, n) 秘密共享方案的构造，引入了布尔或运算(OR, 记作\_"), 提出了针对黑白二值图像的r 轮(2, n) 秘密共享方案-R wheel (2, n) secret sharing scheme, structure, introduces a Boolean or operation (denoted as OR, \_ "), is proposed for the black and white two R wheel image (2, n) secret sharing scheme