摘要
通过分析多类多水印的特点,讨论了多类多水印的技术难点,提出一种基于小波系数分块嵌入水印的解决方案,将各类型水印归一化处理,但对每种水印单独制定自适应嵌入技术,实现3种类型7个水印的同时隐藏.仿真实验证明了该方案的有效性.
The characteristic and the difficulties in the implementation of multitype watermarks are discussed. Based on the discussion, a multitype watermark scheme is proposed, in which wavelet coefficients are split into blocks. With every type of watermarks normalized, the approach customizes embedding respectively for each type of watermarks. Seven watermarks of 3 types are embedded at one time. Finally, simulations prove the feasibility of the proposed scheme.
出处
《西南交通大学学报》
EI
CSCD
北大核心
2003年第2期235-239,共5页
Journal of Southwest Jiaotong University
