A Blind Watermark Algorithm in Mixed Transform Domain Based on Chaotic Sequence Locating

Author

Liu, Jing ; Gao, Fei ; Zhang, Hui

Author_Institution

Dept. of Electron. Eng., Beijing Inst. of Technol., Beijing

fYear

2008

fDate

18-20 June 2008

Firstpage

23

Lastpage

23

Abstract

This paper presents a blind watermark algorithm in mixed transform domain by using chaotic sequence for the watermark locating. After DWT, the DCT is applied on the low frequency and chaotic sequence is used to locate the position of the watermark information in DCT domain. The watermark information is embedded by comparing the frequency coefficients. With favorable transparency, the experimental results show that the algorithm has a good robustness against noise, image processing, malicious attacks and image compression. The adoption of chaotic sequences enhances the security capability.

Keywords

chaos; data compression; discrete cosine transforms; image coding; image sequences; watermarking; DCT; DWT; blind watermark algorithm; chaotic sequence location; frequency coefficients; image compression; image processing; mixed transform domain; security capability; Chaos; Discrete cosine transforms; Discrete wavelet transforms; Frequency; Image coding; Image processing; Information security; Low-frequency noise; Noise robustness; Watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Innovative Computing Information and Control, 2008. ICICIC '08. 3rd International Conference on

Conference_Location

Dalian, Liaoning

Print_ISBN

978-0-7695-3161-8

Electronic_ISBN

978-0-7695-3161-8

Type

conf

DOI

10.1109/ICICIC.2008.9

Filename

4603212