A Stable Meaningful Image Encryption Scheme Using the Newly-Designed 2D Discrete Fractional-Order Chaotic Map and Bayesian Compressive Sensing
Signal processing(2022)
摘要
In order to safely and covertly protect the digital image information during public channel transmission and localized storage, a stable image visually secure encryption algorithm by using 2D discrete fractional-order chaotic map (FOCM), Bayesian compressive sensing (BCS), and discrete V transform (DVT) is presented in this paper. First, the key-controlled measurement matrix constructed by the infinite collapse-Chebyshev-coupling chaotic map is employed to measure the scrambled wavelet packet coefficients of plain image in parallel. Then, the fractional-order chaotic map designed through piece-wise constant arguments method is employed to generate the secret code streams with assistance of the counter mode, and under its control, the compressed image is re-encrypted into the intermediate secret image. Next, the DVT-based embedding technology is proposed to stochastically embed the secret data into the non-secret-involved host image. Eventually, experimental results show that under the premise of ensuring security, the proposed algorithm improves the visual security around 1 similar to 9 dB, and stabilizes its compression performance within 1 dB, compared with other existing related encryption algorithms. (C) 2022 Elsevier B.V. All rights reserved.
更多查看译文
关键词
Image security,Visually meaningful cipher image,Chaotic map,Compressive sensing,Discrete V transform
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要