Title :
A New Wavelet Watermark Scheme of Color Image Based on Chaotic Sequences
Author :
Nian-sheng Liu ; Guo-hao Yang ; Dong-Hui Guo ; Cheng, L.L.
Author_Institution :
Sch. of Comput. Eng., Jimei Univ., Xiamen
Abstract :
A novel transform-domain image watermark based on chaotic sequences is proposed in this paper. A complex chaos-based scheme is developed to embed a gray-level image in the wavelet domain of the original color image signal. The chaos system plays an important role in the security and invisibility of the proposed scheme. The parameter and initial state of chaos system directly influence the generation of watermark information as a key. Meanwhile, the watermark information has the property of spread spectrum signal by chaotic sequence. To improve the invisibility of watermarked image Computer simulation results show that the proposed algorithm is imperceptible and is robust to most watermarking attacks, especially to image cropping, JPEG compression and multipliable noise.
Keywords :
image coding; image colour analysis; security of data; watermarking; wavelet transforms; JPEG compression; chaotic sequences; color image; gray-level image; image cropping; multipliable noise; security; spread spectrum signal; wavelet watermark; Chaos; Color; Computer simulation; Image coding; Information security; Noise robustness; Spread spectrum communication; Transform coding; Watermarking; Wavelet domain; Wavelet Watermark;
Conference_Titel :
Intelligent Information Hiding and Multimedia Signal Processing, 2008. IIHMSP '08 International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-0-7695-3278-3
DOI :
10.1109/IIH-MSP.2008.233
