Multi-image encryption scheme with quaternion discrete fractional Tchebyshev moment transform and cross-coupling operation

NR Zhou, LJ Tong, WP Zou - Signal Processing, 2023‏ - Elsevier
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 …

A survey of image encryption algorithms based on chaotic system

P Fang, H Liu, C Wu, M Liu - The Visual Computer, 2023‏ - Springer
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 …

A simple color image encryption algorithm based on a discrete memristive hyperchaotic map and time-controllable operation

Y Peng, Z Lan, K Sun, W Xu - Optics & Laser Technology, 2023‏ - Elsevier
Chaotic maps are widely used in image encryption due to their characteristics, but many
chaotic maps have the weakness of narrow and discontinuous chaotic range. To solve the …

3D variable-structure chaotic system and its application in color image encryption with new Rubik's Cube-like permutation

J **n, H Hu, J Zheng - Nonlinear Dynamics, 2023‏ - Springer
Nowadays, images have an increasingly deep impact on human life, so it is essential to
encrypt images. Among various image encryption methods, chaotic encryption is particularly …

A class of m-dimension grid multi-cavity hyperchaotic maps and its application

W Zhu, K Sun, S He, H Wang, W Liu - Chaos, Solitons & Fractals, 2023‏ - Elsevier
In this paper, a new closed-loop multiple modulation coupling (CMMC) method is proposed
to construct an enhanced chaotic system. Based on the iterative chaotic map with infinite …

Efficient and secure cancelable biometric authentication framework based on genetic encryption algorithm

W El-Shafai, FAHE Mohamed… - IEEE …, 2021‏ - ieeexplore.ieee.org
Various cancelable biometric techniques have been proposed to maintain user data
security. In this work, a cancelable biometric framework is introduced to satisfy user data …

Traditional and deep-learning-based denoising methods for medical images

W El-Shafai, SA El-Nabi, AM Ali, ESM El-Rabaie… - Multimedia Tools and …, 2024‏ - Springer
Visual information is extremely important in today's world. Visual information transmitted in
the form of digital images has become a critical mode of communication. As a result, digital …

Image encryption approach using improved chaotic system incorporated with differential evolution and genetic algorithm

S Bhowmik, S Acharyya - Journal of Information Security and Applications, 2023‏ - Elsevier
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 …

Robust and efficient multi-level security framework for color medical images in telehealthcare services

W El-Shafai, EED Hemdan - Journal of Ambient Intelligence and …, 2023‏ - Springer
Recently, medical color images significantly affect the efficient diagnosis process and
investigation of critical diseases besides mitigating the misdiagnosis problems. Surplus, the …

Cancelable biometric security system based on advanced chaotic maps

HAA El-Hameed, N Ramadan, W El-Shafai… - The Visual …, 2021‏ - Springer
In recent years, the protection of human biometrics has witnessed an exponential growth.
Fingerprint recognition has been utilized for cell phone authentication, biometric passports …