摘要
提出了一种双图像数字水印技术,即在图像文件中同时嵌入可见和不可见数字水印。先采用一种空间域方法在低频非细节的区域嵌入可见数字水印信息,然后将数字水印图像进行置乱处理,再应用小波分解技术嵌入不可见数字水印信息。该种方法具有很好的适用性,试验结果表明它对图像处理也具有较强的鲁棒性。
A scheme of dual watermarking for image digital watermarking are both embedded in original is presented. A visible digital watermarking and an invisible image. Firstly,the information of visible digital watermarking are imbedded in low-frequency and non-detail area, then scramble the embedded image.Secondly, the technique of wavlet decompose is used to imbed the data of invisible watermarking. The method has a good adaptability, and the experiments show that this scheme is robust against image processing.
出处
《安徽工业大学学报（自然科学版）》
CAS
2006年第2期189-191,198,共4页
Journal of Anhui University of Technology（Natural Science）
关键词
数字水印
可见数字水印
不可见数字水印
digital watermarking
visible digital watermarking
invisible digital watermarking
