摘要
在对小波域中数字水印的嵌入算法研究的基础上 ,利用混沌序列所特有的不可预测性 ,将混沌理论引入数字水印的创建中 ,提出了改进的小波域混沌数字水印算法 ,并通过仿真实现了利用Logistic映射产生的混沌序列有序的嵌入小波域数字水印的方法 ,该算法具有密钥唯一性、不可逆性、不可见性、鲁棒性等特点 实验证明该算法具有很好的视觉效果 。
Due to the unpredictability property of chaotic sequence, chaos theory can be used in the process of creating the digital watermarking. A robust digital watermarking scheme based on Logistic chaotic sequences is proposed. The watermark is pre-processed by Logistic chaotic sequences and spread adaptive over the image wavelet domain. The experimental results demonstrate that the watermark is robust to general image processing techniques and geometric distortions. The watermarked image has good visual effect, which demonstrates that this algorithm is feasible.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2004年第10期1236-1238,共3页
Acta Photonica Sinica
基金
国家自然科学基金资助项目 (6 0 0 72 0 4 4 )
