论文标题
可压缩加密图像中的可逆数据隐藏方法
A Reversible Data Hiding Method in Compressible Encrypted Images
论文作者
论文摘要
我们在可压缩的加密图像中提出了可逆的数据隐藏方法（RDH）方法，称为加密 - 压缩（ETC）图像。所提出的方法使我们不仅可以在加密的图像中嵌入有效载荷，还可以压缩包含有效载荷的加密图像。另外，建议的RDH方法可以应用于普通图像和加密图像，并且可以在加密的域或解密的图像中灵活提取有效载荷。 Various RDH methods have been studied in the encrypted domain, but they are not considered to be two-domain data hiding, and the resultant images cannot be compressed by using image coding standards, such as JPEG-LS and JPEG 2000. In our experiment, the proposed method shows high performance in terms of lossless compression efficiency by using JPEG-LS and JPEG 2000, data hiding capacity, and marked image quality.
We propose a reversible data hiding (RDH) method in compressible encrypted images called the encryption-then-compression (EtC) images. The proposed method allows us to not only embed a payload in encrypted images but also compress the encrypted images containing the payload. In addition, the proposed RDH method can be applied to both plain images and encrypted ones, and the payload can be extracted flexibly in the encrypted domain or from the decrypted images. Various RDH methods have been studied in the encrypted domain, but they are not considered to be two-domain data hiding, and the resultant images cannot be compressed by using image coding standards, such as JPEG-LS and JPEG 2000. In our experiment, the proposed method shows high performance in terms of lossless compression efficiency by using JPEG-LS and JPEG 2000, data hiding capacity, and marked image quality.
