Title :
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
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;
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
DOI :
10.1109/ICICIC.2008.9
