In the past two decades, reversible data hiding (RDH), also referred to as lossless or
invertible data hiding, has gradually become a very active research area in the field of data …

The paper illustrates recent results regarding secure watermarking to the signal processing
community, highlighting both benefits and still open issues. Secure signal processing, by …

With the increasing importance of images in people's daily life, content-based image
retrieval (CBIR) has been widely studied. Compared with text documents, images consume …

This paper proposes a new chaotic system based on two parameters. The proposed chaotic
system has good chaotic characteristics, and it can be shown that the chaotic system is …

Reversible data hiding in encrypted images has attracted considerable attention from the
communities of privacy security and protection. The success of the previous methods in this …

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 …

This work proposes a novel reversible data hiding scheme for encrypted image. After
encrypting the entire data of an uncompressed image by a stream cipher, the additional data …

This letter proposes an improved version of Zhang's reversible data hiding method in
encrypted images. The original work partitions an encrypted image into blocks, and each …

This paper proposes lossless, reversible, and combined data hiding schemes for ciphertext
images encrypted by public-key cryptosystems with probabilistic and homomorphic …

A novel reversible data hiding technique in encrypted images is presented in this paper.
Instead of embedding data in encrypted images directly, some pixels are estimated before …