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Chin. Phys. B, 2013, Vol. 22(9): 094202    DOI: 10.1088/1674-1056/22/9/094202
ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS Prev   Next  

An image joint compression-encryption algorithm based on adaptive arithmetic coding

Deng Jia-Xian (邓家先), Deng Hai-Tao (邓海涛)
College of Information Science and Technology, Hainan University, Haikou 570228, China
Abstract  Through a series of studies on arithmetic coding and arithmetic encryption, a novel image joint compression-encryption algorithm based on adaptive arithmetic coding is proposed. The contexts produced in the process of image compression are modified by keys in order to achieve image joint compression encryption. Combined with the bit-plane coding technique, the discrete wavelet transform coefficients in different resolutions can be encrypted respectively with different keys, so that the resolution selective encryption is realized to meet different application needs. Zero-tree coding is improved, and adaptive arithmetic coding is introduced. Then, the proposed joint compression-encryption algorithm is simulated. The simulation results show that as long as the parameters are selected appropriately, the compression efficiency of proposed image joint compression-encryption algorithm is basically identical to that of the original image compression algorithm, and the security of the proposed algorithm is better than the joint encryption algorithm based on interval splitting.
Keywords:  image compression      joint compression-encryption algorithm      arithmetic encryption      progressive classification encryption  
Received:  09 January 2013      Revised:  27 February 2013      Accepted manuscript online: 
PACS:  42.30.Va (Image forming and processing)  
  95.75.Mn (Image processing (including source extraction))  
  42.30.Wb (Image reconstruction; tomography)  
Fund: Project supported by the Natural Science Foundation of Hainan Province, China (Grant No. 613155).
Corresponding Authors:  Deng Jia-Xian     E-mail:  jxiandeng@126.com

Cite this article: 

Deng Jia-Xian (邓家先), Deng Hai-Tao (邓海涛) An image joint compression-encryption algorithm based on adaptive arithmetic coding 2013 Chin. Phys. B 22 094202

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