Medical images typically contain personal and diagnostic information about patients and are
typically shared among hospitals, doctors, and patients via public networks. As a result, they …

Meta-heuristic techniques are widely used to solve different complex real-life problems in
recent scenarios. In this work, traditional key-generation mechanisms have been combined …

In this paper, we propose an image encryption algorithm based on random walk and two
hyperchaotic systems. The random walk method is adopted to scramble the position of …

Presently, the design and development of an effective image steganography system are
facing several challenges including the low capacity, poor robustness and imperceptibility …

Nowadays, chaos-based image encryption is recognized as an effective choice in secure
communications. This paper proposes a novel approach, which uses bit-pair level XOR …

In this paper, we propose a new image encryption algorithm based on bit-plane matrix
rotation and two hyper chaotic systems. The algorithm first decomposes the plain-image into …

Image encryption is an important area in recent days. It is widely known as an effective
method for secure transmission. The objective of any image encryption algorithm is to obtain …

Securing digital medical images is increasingly becoming a major concern due to the rapid
growth of the amount of medical images transferred over a network and stored on the web …

With the advancement of computer and communication technologies in data processing,
storage, and increasing bandwidth of data transmission, the amount of multimedia data …

Medical images are critical to medical diagnosis and clinical treatment. However, the
transmission of medical images over the Internet without any protection may cause …