An efficient image encryption scheme based on variable row-columns scrambling and selective block diffusion

Weiye Huang; Xin Lyu; Chao Zhang; Xin Li; Yifei Su; Tao Zeng; Xinyuan Wang; Zhennan Xu; Yucong Huang

doi:10.1117/12.2644699

12 October 2022 An efficient image encryption scheme based on variable row-columns scrambling and selective block diffusion

Weiye Huang, Xin Lyu, Chao Zhang, Xin Li, Yifei Su, Tao Zeng, Xinyuan Wang, Zhennan Xu, Yucong Huang

Author Affiliations +

Proceedings Volume 12342, Fourteenth International Conference on Digital Image Processing (ICDIP 2022); 123422Z (2022) https://doi.org/10.1117/12.2644699
Event: Fourteenth International Conference on Digital Image Processing (ICDIP 2022), 2022, Wuhan, China

Abstract

With the continuous development of multimedia technology and shooting hardware, more and more high-quality images appear in life and production. At present, there are many image encryption methods to ensure image security, but most of them cannot meet the real-time requirements of large-size image encryption, which causes great obstacles to the application and popularization of image encryption. In this paper, an efficient image encryption method based on variable row-columns scrambling and dynamic threshold selective block diffusion is designed. The pixels are operated in batches row by column and block, and the length of chaotic sequence required is reduced without reducing the security, thus reducing the time consuming of the encryption system. In addition, the modified five-point sampling is adopted to select chaotic sequence, which improves the utilization rate of chaotic sequence and further improves the encryption efficiency. Experimental results show that the proposed method has a higher encryption efficiency than the existing methods with similar security, and has strong practicability.

Citation Download Citation

Weiye Huang, Xin Lyu, Chao Zhang, Xin Li, Yifei Su, Tao Zeng, Xinyuan Wang, Zhennan Xu, and Yucong Huang "An efficient image encryption scheme based on variable row-columns scrambling and selective block diffusion", Proc. SPIE 12342, Fourteenth International Conference on Digital Image Processing (ICDIP 2022), 123422Z (12 October 2022); https://doi.org/10.1117/12.2644699

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KEYWORDS

Image encryption

Diffusion

Computer security

Complex systems

Image information entropy

Image processing

Statistical analysis

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