Results 11 to 20 of about 6,876 (161)

Perceptual accessible image encryption scheme conjugating multiple chaotic maps

IET Image Processing, 2020
In the recent decade, chaos‐based image encryption algorithms gained attention due to their pros and cons. The authors suggest one such algorithm of image encryption for different colour space using feed forward initial condition to pursue random ...
Ram Chandra Barik, Suvamoy Changder
doaj   +1 more source

CLTSA: A Novel Tunicate Swarm Algorithm Based on Chaotic-Lévy Flight Strategy for Solving Optimization Problems

Mathematics, 2022
In this paper, we proposed a tunicate swarm algorithm based on Tent-Lévy flight (TLTSA) to avoid converging prematurely or failing to escape from a local optimal solution.
Yi Cui, Ronghua Shi, Jian Dong
doaj   +1 more source

Stability and expansivity of tent map

Proceedings of the American Mathematical Society, 2020
We discuss the stability and the expansivity of the tent map f : [ 0 ,
Carrasco-Olivera, D., Morales, C. A., Villavicencio, H.   +2 more
openaire   +2 more sources

Robustly correlated key‐medical image for DNA‐chaos based encryption

IET Image Processing, 2021
Medical images include confidential and sensitive information about patients. Hence, ensuring the security of these images is a crucial requirement.
Ichraf Aouissaoui, Toufik Bakir, Anis Sakly   +2 more
doaj   +1 more source

A Comparison of Chaotic Electromagnetic Field Optimization Algorithms [PDF]

International Journal Bioautomation
This paper investigates the performance of various Electromagnetic Field Optimization (EFO) algorithms. Chaos maps are proposed to improve the performance of EFO algorithms.
Olympia Roeva, Dafina Zoteva
doaj   +1 more source

Periodic Patterns of Signed Shifts [PDF]

Discrete Mathematics & Theoretical Computer Science, 2013
The periodic patterns of a map are the permutations realized by the relative order of the points in its periodic orbits. We give a combinatorial description of the periodic patterns of an arbitrary signed shift, in terms of the structure of the descent ...
Kassie Archer, Sergi Elizalde
doaj   +1 more source

A Novel Chaotic Flower Pollination Algorithm for Global Maximum Power Point Tracking for Photovoltaic System Under Partial Shading Conditions

IEEE Access, 2019
A partial shading condition is an environmental phenomenon that causes multiple peaks in Photovoltaic (PV) characteristics. Introducing robust and reliable Maximum Power Point Tracking technique is essential in PV systems to extract the Global Maximum ...
Dalia Yousri, Thanikanti Sudhakar Babu, Dalia Allam, Vigna K. Ramachandaramurthy, Magdy B Etiba   +4 more
doaj   +1 more source

Tent Map based Optimization Method

Gazi Üniversitesi Fen Bilimleri Dergisi, 2018
In the real life, some problems cannot be solved using mathematical methods. Meta-heuristic optimization methods are usually used to solve these problems.
Türker TUNCER
doaj   +1 more source

Adaptive Color Image Encryption Scheme Based on Multiple Distinct Chaotic Maps and DNA Computing

Mathematics, 2022
In this paper, we propose an adaptive encryption scheme for color images using Multiple Distinct Chaotic Maps (MDCM) and DNA computing. We have chosen three distinct chaotic maps, including a 2D-Henon map, a Tent map, and a Logistic map, to separately ...
Shaista Mansoor, Parsa Sarosh, Shabir A. Parah, Habib Ullah, Mohammad Hijji, Khan Muhammad   +5 more
doaj   +1 more source

Spatiotemporal chaotic one-way Hash function construction based on coupled tent maps

Tongxin xuebao, 2007
A novel coupled tent maps-based spatiotemporal chaotic cryptographic Hash function was proposed.Compared with the discrete tent map,the coupled discrete tent spatiotemporal chaotic maps have longer computer-realization-period,nearly uniform distribution ...
LIU Jian-dong, FU Xiu-li
doaj   +2 more sources