中国物理B ›› 2013, Vol. 22 ›› Issue (9): 94202-094202.doi: 10.1088/1674-1056/22/9/094202

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

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

邓家先, 邓海涛   

  1. College of Information Science and Technology, Hainan University, Haikou 570228, China
  • 收稿日期:2013-01-09 修回日期:2013-02-27 出版日期:2013-07-26 发布日期:2013-07-26
  • 基金资助:
    Project supported by the Natural Science Foundation of Hainan Province, China (Grant No. 613155).

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

Deng Jia-Xian (邓家先), Deng Hai-Tao (邓海涛)   

  1. College of Information Science and Technology, Hainan University, Haikou 570228, China
  • Received:2013-01-09 Revised:2013-02-27 Online:2013-07-26 Published:2013-07-26
  • Contact: Deng Jia-Xian E-mail:jxiandeng@126.com
  • Supported by:
    Project supported by the Natural Science Foundation of Hainan Province, China (Grant No. 613155).

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摘要： 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.

关键词: image compression, joint compression-encryption algorithm, arithmetic encryption, progressive classification encryption

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.

Key words: image compression, joint compression-encryption algorithm, arithmetic encryption, progressive classification encryption

中图分类号:  (Image forming and processing)

  • 42.30.Va
95.75.Mn (Image processing (including source extraction)) 42.30.Wb (Image reconstruction; tomography)