Title :
Double Zero-watermarking Algorithm on Hyperchaotic Iteration
Author :
Wang, W.X. ; Xu, H.L. ; Li, S.
Author_Institution :
Henan Polytech. Univ., Jiaozuo, China
Abstract :
A new double Zero-watermarking method based on frequency domain is proposed in this paper. It uses the main message of an image to construct the watermark, hence keep the best invisibility. In the method, DCT and DWT are applied to enhance the quality for resisting attacks. It solves the problem that one type of watermarks can not detect all the attacks and increases the safety by encrypting a chaotic sequence. We proved the robustness of the method by experiments.
Keywords :
chaotic communication; cryptography; discrete cosine transforms; random sequences; watermarking; wavelet transforms; DCT; DWT; chaotic sequence encryption; discrete cosine transform; discrete wavelet transform; double zero-watermarking algorithm; frequency domain; hyperchaotic iteration; image message; watermark construction; Chaos; Chaotic communication; Cryptography; Discrete cosine transforms; Discrete wavelet transforms; Equations; Frequency domain analysis; Robustness; Safety; Watermarking; chaotic sequence; double Zero; image; watermark;
Conference_Titel :
Intelligent Information Technology Application, 2009. IITA 2009. Third International Symposium on
Conference_Location :
Nanchang
Print_ISBN :
978-0-7695-3859-4
DOI :
10.1109/IITA.2009.443
