This article presents an overview of image transformation with a secret key and its
applications. Image transformation with a secret key enables us not only to protect visual …

In the last few years, with the increasing popularity of cloud computing and the availability of
mobile smart devices as well as ubiquitous network connections, more and more users are …

A block scrambling-based encryption scheme is presented to enhance the security of
Encryption-then-Compression (EtC) systems with JPEG compression, which allow us to …

Recently, more and more attention is paid to reversible data hiding (RDH) in encrypted
images, since it maintains the excellent property that the original cover can be losslessly …

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 …

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 …

This paper proposes a novel scheme of reversible data hiding in encrypted images using
distributed source coding. After the original image is encrypted by the content owner using a …

In recent years, signal processing in encrypted images received much attention from
academia due to the privacy preserving property. Reversible data hiding in encrypted …

In many practical scenarios, image encryption has to be conducted prior to image
compression. This has led to the problem of how to design a pair of image encryption and …