With quaternion theory, the traditional discrete fractional Tchebyshev transform is extended
to the quaternion algebra domain for multi-image processing. A new multi-image encryption …

The fast-paced advancement in multimedia production and exchanges over unsecured
networks have led to a dire need to develop security applications. In this regard, chaos …

Many researchers have devoted themselves to studying image encryption based on chaotic
system and have made significant strides in research in recent decades. This paper first …

Considering the current dependency on digital technology in modern society, the protection
of multimedia is highly important. Encryption is vital in modern digital communication …

One of the key tenets of the enormous and still-expanding digital realm is the security of
images. In recent years, the interest in image encryption has increased among researchers …

An adaptive reversible image-data hiding (ARIdH) algorithm is proposed. First, the variance
of the secret plain image is calculated and taken as feature values, by a new integer …

Over the past few years, there has been a rise in the utilization of chaotic encryption
algorithms for securing images. The majority of chaos-based encryption algorithms adhere …

This study proposes a novel color image encryption algorithm based on a 3D chaotic
Hopfield neural network and random row–column permutation. First, a 3D chaotic Hopfield …

Multimedia information usage is increasing with new technologies such as the Internet of
things (IoT), cloud computing, and big data processing. Video is one of the most widely used …

To improve the chaotic behavior of the chaotic map, this paper proposes a new two-
dimensional (2D) chaotic map, namely, 2D enhanced hyperchaotic Logistic-sine map (2D …