Image encryption with chaotic random codes by grey relational grade and Taguchi method
| Autor: | Hong Wei Shieh, Hsiau Hsian Nien, Chuan-Kuei Huang, Shih Kuen Changchien |
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| Rok vydání: | 2007 |
| Předmět: |
business.industry
Color image Computer science Chaotic Encryption Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Image (mathematics) Set (abstract data type) Digital image Taguchi methods Optics Graph (abstract data type) Electrical and Electronic Engineering Physical and Theoretical Chemistry business Algorithm |
| Zdroj: | Optics Communications. 280:300-310 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2007.08.052 |
| Popis: | This paper presents a novel scheme for implementation of quasi-optimal chaotic random codes (CRC). Usually, the localization grey relational grade (LGRG) approaches 1 by using less random codes to encrypt digital color images. On the contrary, randomized codes cause highly independent images. In this paper, the LGRG between original and encoded image is used as the quality characteristic, and the chaotic system’s initial values x 0 , y 0 and z 0 which influence the quality characteristic are chosen as control factors and the levels are also decided. According to the control factors and levels, this paper applied a Taguchi orthogonal array for the experiments, and generated a factor response graph, to figure out a set of chaotic initial values. Finally, the quasi-optimal CRC are decided by these initial values. Eventually, the most effective encryption of digital color images can be obtained by applying the quasi-optimal CRC. The experimental results have demonstrated that the proposed scheme is feasible and efficient. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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