Robust Watermark Using the Auxiliary Information
A novel digital image watermarking scheme is proposed, which is based on Walsh spread spectrum for watermark embedding in DWT domain. Our main contributions are below: 1) texture regions have been chosen to embed the watermark information and a simple texture region detection method is presented; 2) the auxiliary information is introduced to locate the watermark region during extracting process, which has been embedded into the image texture region together with the watermark; 3) all information will be spread spectrum to improve robustness of the watermark scheme before they are embedded. Very promised results show this method has strongly robust to some signal attacks, especially, the geometric attacks.
Guo Lihua Zhang Yuanjian
School of Electronic and Information, South China University of Technology,Guangzhou, 510641, China
国际会议
2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)
广西桂林
英文
6-10
2006-06-25（万方平台首次上网日期，不代表论文的发表时间）