In many multimedia applications, image encryption has to be conducted prior to image
compression. This paper proposes a JPEG-friendly perceptual encryption method, which …

In many multimedia applications, image encryption has to be conducted prior to image
compression. This paper proposes an Encryption-then-Compression system using a JPEG …

Privacy protection of surveillance videos is an important issue because of the pervasiveness
of surveillance cameras. Region of interest (RoI) privacy protection prefers encrypting limited …

This paper proposes a novel scheme for encrypted JPEG image retrieval, which includes
image encryption and retrieval phases. Using the scheme, the content owner encrypts JPEG …

The authors propose a framework to encrypt Baseline JPEG files directly at bitstream level,
ie, without the need to recompress them. The authors' approach enables encrypting more …

GPS devices typically make use of images that are excessively large to be stored as a Bit
Map, so the images are always compressed. The widespread compression technique is …

Visual security metrics are deterministic measures with the (claimed) ability to assess
whether an encryption method for visual data does achieve its defined goal. These metrics …

We propose a new method to encrypt baseline JPEG bit streams by selective Huffman code
word swapping and coefficient value scrambling based on AES encryption. Furthermore, we …

We propose a finely tunable JPEG format-compliant perceptual encryption (FE) with two
novel strategies:(i) bitcuboid-based encryption (BE) and (ii) exception-free signed …

We propose an encryption framework design and implementation which add region-of-
interest encryption functionality to existing video surveillance systems with minimal …