基于小波的图像水印研究进展  

Research Progress on Wavelet-Based Image Watermarking

作　　者：王相海[1] 

机构地区：[1]辽宁师范大学计算机与信息技术学院

出　　处：《计算机科学》2005年第1期202-207,216,共7页Computer Science

基　　金：国家自然科学基金(项目号:60372071);辽宁省自然基金(项目号:20032105);大连市科技基金;辽宁省高等学校优秀人才支持计划资助

摘　　要：随着多媒体和Internet的迅速发展,对数字产品保护和信息安全的迫切需求使得数字水印技术成为多媒体信息安全研究领域的一个热点问题。基于小波的多媒体水印算法近年来受到人们高度重视,特别是,随着JPEG2000将小波交换纳入其中,该领域的研究更加具有实际意义。本文首先分析了有益于图像水印的小波转换的性能,随后对基于小波的图像水印技术进行了综述,对目前常用的水印技术进行了分类和讨论,最后对小波领域图像水印的发展方向进行了展望。With the rapid development of multimedia and Internet, there is a strong need for security services in order to keep the distribution of digital multimedia work both profitable for the document owner and reliable for the cus- tomer. The wavelet-based multimedia watermarking algorithms have received much attention in recent years, and with the standardization process of JPEG2000 and the shift from DCT- to wavelet-based image compression methods, watermarking schemes operating in the wavelet transform domain have become even more interesting. In this paper, the properties of the wavelet transform benefiting image watermarking are first analyzed, and an overview of the wavelet-based watermarking techniques available today is given. In particular, these techniques are classified and dis- cussed. Finally, the future development of wavelet-based image watermarking is also analyzed and conjectured.

关 键 词：图像水印 小波转换 次能带 HVS JPEG2000 小波滤波器 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]