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基于小波域的数字图象水印算法综述
引用本文:强英,王颖.基于小波域的数字图象水印算法综述[J].计算机工程与应用,2004,40(11):46-49,104.
作者姓名:强英  王颖
作者单位:1. 中国科学技术大学研究生院,北京,100039
2. 中国科学技术大学研究生院,北京,100039;信息安全国家重点实验室,北京,100039
基金项目:国家863高技术研究发展计划项目(编号:2003AA144081)
摘    要:小波变换以其良好的空频特性,及与图象编码标准JPEG2000的兼容性,使得小波域水印更具鲁棒性,以及更大的嵌入容量。该文将展示多种利用小波变换进行扩频的水印算法,阐述如何运用小波图象压缩中的多尺度概念嵌入、检测水印。此外该文对小波域水印算法进行分类、比较,总结出各类水印算法的特性,并提出小波域水印算法的发展方向。

关 键 词:数字水印  小波变换  鲁棒性  图象压缩  HVS
文章编号:1002-8331-(2004)11-0046-04

A Survey of Wavelet-domain Based Digital Image Watermarking Algorithm
Qiang Ying,Wang Ying.A Survey of Wavelet-domain Based Digital Image Watermarking Algorithm[J].Computer Engineering and Applications,2004,40(11):46-49,104.
Authors:Qiang Ying  Wang Ying
Affiliation:Qiang Ying 1 Wang Ying 1,21
Abstract:The advantage of wavelet domain watermark is its perfect location-freq ue ncy feather and its compatibility with the upcoming image coding standard,JPEG 2000.It makes the wavelet-domain watermark is more robust and can contain more capacity.We will see how to perform spread-spectrum watermarking by emp loying wavelet transform domain in a variety of ways,and how to embed and extra ct watermarks by the concept of multiresolution property of wavelet image decom position.We will classify and compare the wavelet watermarking algorithms ,an d illustrate their properties.At last,we will propose the tendency of the wa velet-domain watermarking algorithm.
Keywords:Digital watermarking  Wavelet t ransform  Robustness  Compression  HVS
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