Abstract:
This paper presents a double zero-watermarking algorithm based on transform domain and hyperchaotic iteration. It uses the important coefficients of Discrete Cosine Transform(DCT) domain and Discrete Wavelet Transform(DWT) domain to constructure zero watermarkings separately, uses a hyperchaotic sequence to encrypt, so that the robustness, invisibility and security are improved. Experimental results show that the algorithm improves the integrated performance of the watermarking system.
Key words:
hyperchaotic iteration,
double zero-watermarking,
invisibility,
robustness,
security
摘要: 提出一种用超混沌迭代产生的序列进行加密的双重零水印算法,用图像离散余弦变换和小波变换后的重要系数分别构造零水印,以提高水印算法的抗攻击能力,采用超混沌序列进行加密,以提高系统的安全性。实验结果表明,该算法提高了水印系统的综合性能,具有较好的不可见性、鲁棒性和安全性。
关键词:
超混沌迭代,
双重零水印,
不可见性,
鲁棒性,
安全性
CLC Number:
LI Shuai; WANG Wei-xing. Double Zero-watermarking Algorithm Based on Hyperchaotic Iteration[J]. Computer Engineering, 2008, 34(17): 158-161.
李 帅;王卫星. 基于超混沌迭代的双重零水印算法[J]. 计算机工程, 2008, 34(17): 158-161.