摘要
提出一种小波域基于图像内容的局部化自适应数字水印算法 该算法利用图像中相对稳定的特征点来标示局部水印的嵌入位置 ,并在与每个特征点对应的局部区域 (子图像 )内 ,依据DWT域的水印嵌入策略 ,独立地、自适应地嵌入基于子图像内容的水印 实验结果证明 。
A content-based watermarking model based on discrete wavelet transform (DWT) is presented. It took the new watermarking-embedding strategy based on DWT domain to adaptively embed local image-content-based watermarks into the corresponding local regions of the image marked by stable feature points. Experimental results show that the proposed arithmetic is strongly robust to various attacks, especially cropping.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2004年第4期465-469,共5页
Journal of Computer-Aided Design & Computer Graphics
基金
首届全国优秀博士论文奖项目 ( 19993 6)资助
