Journal
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
Volume 57, Issue 9, Pages 2904-2919Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10773-018-3810-7
Keywords
5D hyper-chaotic system; Zigzag scan coding; Quantum discrete cosine transform; Quantum image compression; Quantum image encryption
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Funding
- National Natural Science Foundation of China [61462061]
- Natural Science Foundation of Jiangxi Province [20151BAB207002]
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To obtain higher encryption efficiency and to realize the compression of quantum image, a quantum gray image encryption-compression scheme is designed based on quantum cosine transform and 5-dimensional hyperchaotic system. The original image is compressed by the quantum cosine transform and Zigzag scan coding, and then the compressed image is encrypted by the 5-dimensional hyperchaotic system. The proposed quantum image encryption-compression algorithm has larger key space and higher security, since the employed 5-dimensional hyperchaotic system has more complex dynamic behavior, better randomness and unpredictability than the low-dimensional hyper-chaotic system. Simulation and theoretical analyses show that the proposed quantum image encryption-compression scheme is superior to the corresponding classical image encryption scheme in term of efficiency and security.
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