Similar-short Periodicity Analysis and Application in Image Compression Encryption of Digital Chaos

Author

Geng, Xiaoli ; Ding, Qun

Author_Institution

Key Lab. of Electron. Eng., Heilongjiang Univ., Harbin, China

fYear

2012

fDate

18-21 Oct. 2012

Firstpage

167

Lastpage

171

Abstract

As digital chaos is affected by the limited precision of computer, chaotic sequence properties present short periodicity. For the phenomenon of digital chaos, the paper analyzes similar-short periodicity of digital chaos and puts forward a novel generator of digital chaos key sequence. Meanwhile, we detail the DCT (Discrete Cosine Transformation) compression and Wavelet compression method, and then make comparison for their different performances. Finally, this paper selects the better compressed image, and then uses new chaotic sequence to encrypt the compressed image.

Keywords

chaos; cryptography; data compression; discrete cosine transforms; image coding; image sequences; wavelet transforms; DCT compression; chaotic sequence properties; digital chaos; digital chaos key sequence; discrete cosine transformation; image compression; image compression encryption; similar-short periodicity analysis; wavelet compression method; Chaotic communication; Correlation; Discrete cosine transforms; Encryption; Image coding; digital chaos; image compression; image encryption; periodicity analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Chaos-Fractals Theories and Applications (IWCFTA), 2012 Fifth International Workshop on

Conference_Location

Dalian

Print_ISBN

978-1-4673-2825-8

Type

conf

DOI

10.1109/IWCFTA.2012.44

Filename

6383252