期刊论文

Chen, Z

英文

Nonlinear Dynamics

0924-090X

2023

111

16

15445-15475

10.1007/s11071-023-08622-4

The authors also would like to thank the support from the scientific research project of Hengyang Normal University (No. 18D24), the Science and Technology Plan Project of Hunan Province (No. 2016TP1020), the General Scientific Research Fund of Hunan Provincial Education Department (NO. 19A066).

本校为第一且通讯机构

In this paper, a lossless image compression and encryption algorithm combining JPEG-LS, neural networks and hyperchaotic mapping is proposed to protect the privacy of digital images and reduce data storage space. Firstly, we design a new 2-Dimensional Logistic-Like Hyperchaotic Map (2DLLHM), which has more complex dynamics than some existing known chaotic systems, and can be used to build a good pseudorandom sequence generator. Secondly, to compress images efficiently, we design a new pixel predictor by combining the MED (Median Edge Detector) ...