摘要
数字水印是数字媒体版权保护的有效手段。文章详细分析了小波域图像水印嵌入策略,提出一种小波域透明图像水印算法,算法选择图像经过小波多分辨率分解后的低频子带作为水印嵌入区域,并利用人眼视觉掩蔽特性对水印的添加强度进行自适应调节。实验获得了良好的结果。
Digital watermarking is an effective method protecting copyright of digital media. This paper analyses embedding tactics of image watermarking using wavelet transform in detail,proposes an approach for transparent image watermarking based on wavelet multiresolution transform in which watermarking is embedded in the lowest-frequency domain.the method uses the characterastic of Human Visual System(HVS) to adjust the intensity of watermarking adaptively.Our Experiments show good performance of this scheme.
出处
《微电子学与计算机》
CSCD
北大核心
2004年第5期66-68,75,共4页
Microelectronics & Computer
基金
国家民委重点科研基金资助项目(MZY02004)
关键词
小波变换
图像水印
多分辨率分解
视觉掩蔽
Wavelet transform, Image watermarking, Multi-resolutin transform, Visual masking
