Image Encryption Based on Chaotic Modulation of Wavelet Coefficients

Author

He, Xiping ; Zhang, Qionghua

Author_Institution

Coll. of Comput. Sci. & Inf. Eng., Chongqing Technol. & Bus. Univ., Chongqing

Volume

1

fYear

2008

fDate

27-30 May 2008

Firstpage

622

Lastpage

626

Abstract

This paper is aimed at the image encryption scheme applicable to JPEG2000 codec. Firstly, two chaotic maps are suggested and their statistic characteristics are also analyzed. Secondly, to accomplish a controllable visual effect of encrypted image, a visual quality control model is presented, and on the basis of which, a chaotic image encryption scheme is constructed by chaotically modulating the randomly selected approximate coefficients at the coarsest level in wavelet domain. Then, the security and efficiency of the algorithm are analyzed. Finally, the experiment results illustrate that the proposed algorithms are credible, secure, efficient, and practical for JPSEC.

Keywords

chaotic communication; cryptography; image coding; modulation; wavelet transforms; JPEG2000 codec; JPSEC; chaotic modulation; image encryption; visual quality control model; wavelet coefficient; Algorithm design and analysis; Chaos; Codecs; Cryptography; Quality control; Security; Statistical analysis; Visual effects; Wavelet coefficients; Wavelet domain; chaotic modulation; encryption; image; wavelet coefficient;

fLanguage

English

Publisher

ieee

Conference_Titel

Image and Signal Processing, 2008. CISP '08. Congress on

Conference_Location

Sanya, Hainan

Print_ISBN

978-0-7695-3119-9

Type

conf

DOI

10.1109/CISP.2008.222

Filename

4566230