Volume 9 Number 2 (Feb. 2014)
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JSW 2014 Vol.9(2): 458-465 ISSN: 1796-217X
doi: 10.4304/jsw.9.2.458-465

Image Encryption Algorithm Based on Wavelet Transforms and Dual Chaotic Maps

Shucong Liu, Yanxing Song, Jingsong Yang
Department of Instrument, Institute of Disaster Prevention, Sanhe,Hebei Province, China

Abstract—In view of characteristics of digital image,such as bulk data capacity,high redundancy and poor security, a new image encryption algorithm was put forward by combining chaotic maps with wavelet transform. Mallat algorithm in wavelet transform firstly was used to decompose the original image, leaving only the lowfrequency information, and then oversampled Chebyshev chaotic maps were used to achieve space chaos of compressed image, oversampled Logistic chaotic maps were used for encryption. Finally, security analysis of the encryption algorithm are analyzed from the perspective of key space, statistical analysis, key sensitivity analysis and so on. Simulation results show that the method can effectively compress image, the amount of information transmission is low and the key space is large enough to resist the bruteforce attack and with good encryption effect.

Index Terms—Chaotic Maps, Image Encryption, Wavelet Transform,Image Transmission

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Cite: Shucong Liu, Yanxing Song, Jingsong Yang, "Image Encryption Algorithm Based on Wavelet Transforms and Dual Chaotic Maps," Journal of Software vol. 9, no. 2, pp. 458-465, 2014.

General Information

ISSN: 1796-217X (Online)
Frequency: Monthly
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Yoyo Y. Zhou
Abstracting/ Indexing: DBLP, EBSCO, ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat, CNKI,etc
E-mail: jsw@iap.org
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