期刊
MULTIMEDIA TOOLS AND APPLICATIONS
卷 77, 期 2, 页码 2191-2208出版社
SPRINGER
DOI: 10.1007/s11042-017-4370-1
关键词
Image encryption; Compressive sensing; Kronecker product; Skew tent map; Fraction Fourier transform
类别
资金
- National Key Research and Development Program of China [2016 YFB0800601]
- National Nature Science Foundation of China [61472331]
- Ministry of Education of China [20110191130005]
- Fundamental Research Funds for the Central Universities [XDJK2015C078]
- Talents of Science and Technology promote plan, Chongqing Science & Technology Commission
This paper introduces a novel method of fast and efficient measurement matrices and random phase masks for color image encryption, in which Kronecker product (KP) is combined with chaotic map. The encryption scheme is based on two-dimension (2D) compressive sensing (CS) and fraction Fourier transform (FrFT). In this algorithm, the KP is employed to extend low dimension seed matrices to obtain high dimension measurement matrices and random phase masks. The low dimension seed matrices are generated by controlling chaotic map. The original image is simultaneously encrypted and compressed by the 2D CS, then re-encrypted with FrFT. The proposed encryption scheme fulfills high speed, low complexity and high security. Numerical simulation results demonstrate the excellent performance and security of the proposed scheme.
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