Separable Reversible Data Hiding in Encrypted Image
Separable Reversible Data Hiding in Encrypted Image
复制标题
加密图像中可分离可逆数据隐藏
DOI：
10.1109/tifs.2011.2176120
复制
发表时间：
2012-04-01
影响因子：
6.8
通讯作者：
Zhang, Xinpeng
中科院分区：
文献类型：
--
作者：
Zhang, Xinpeng
提出了一种新的可分离可逆数据隐藏方案。在第一阶段，内容所有者使用加密密钥对原始未压缩图像进行加密。然后，数据隐藏器可以使用数据隐藏密钥来压缩加密图像的最低有效位，以创建稀疏空间来容纳一些附加数据。对于包含附加数据的加密图像，如果接收者具有数据隐藏密钥，则他可以在不知道图像内容的情况下提取附加数据。如果接收者具有加密密钥，则他可以解密接收到的数据以获得与原始图像相似的图像，但不能提取附加数据。如果接收方同时拥有数据隐藏密钥和加密密钥，则在附加数据量不太大的情况下，利用自然图像的空间相关性，可以提取出附加数据，并准确无误地恢复原始内容。
This work proposes a novel scheme for separable reversible data hiding in encrypted images. In the first phase, a content owner encrypts the original uncompressed image using an encryption key. Then, a data-hider may compress the least significant bits of the encrypted image using a data-hiding key to create a sparse space to accommodate some additional data. With an encrypted image containing additional data, if a receiver has the data-hiding key, he can extract the additional data though he does not know the image content. If the receiver has the encryption key, he can decrypt the received data to obtain an image similar to the original one, but cannot extract the additional data. If the receiver has both the data-hiding key and the encryption key, he can extract the additional data and recover the original content without any error by exploiting the spatial correlation in natural image when the amount of additional data is not too large.