Securing color image by using hyperchaotic system in gyrator transform domains

  • Hang Chen
  • Camel Tanougast
  • Zhengjun Liu
  • Boya Hao
Article
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Abstract

A color image encryption scheme is proposed by using a hyperchaotic system in gyrator transform domains. The red, green and blue (RGB) components of the original color image are encoded into one dimensional stream, respectively. Four chaotic sequences generated by a hyperchaotic system are blended into the streams to synthesize complex sequences. Subsequently the one dimensional complex streams are scrambled by employing discrete cosine transform and then encoded back to image format. Finally, the scrambled complex functions are encoded and transformed in gyrator domains. The parameters in the hyperchaotic system and the gyrator optical system are regarded as the extra keys for improving the security of the proposed scheme. Some numerical simulations are made to test the validity and capability of the proposed color encryption algorithm.

Keywords

Color image encryption Hyperchaotic Cryptography Optical transform 
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Notes

Acknowledgments

This work was supported by the National Natural Science Foundation of China (Grant 61575053), the Fundamental Research Funds for the Central Universities (No. HIT.BRETIII.201406), the Program for New Century Excellent Talents in University (NCET-12-0148), and the China Postdoctoral Science Foundation (2013M540278). The authors wish to thanks Mr. Chengwei Yang in Baicheng Ordnance Test Center of China for the valuable discussion. The authors wish to thank the reviewers for their useful comments and suggestions.

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Hang Chen
    • 1
    • 2
  • Camel Tanougast
    • 1
  • Zhengjun Liu
    • 2
  • Boya Hao
    • 3
  1. 1.Laboratoire Conception Optimisation et Modélisation des SystèmsUniversity de LorraineMetzFrance
  2. 2.Department of Automation Measurement and ControlHarbin Institute of TechnologyHarbinChina
  3. 3.Research Institute of Special Mechanical and Electrical Technology of BeijingBeijingChina

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