A robust watermark algorithm based on wavelet

被引：0
作者：
Yu, Chen [1 ]
Duan, Gui-Duo [1 ]
Li, Jian-Ping [1 ,2 ]
Liao, Jian-Ming [1 ]
Gu, Xiao-Feng [1 ]
机构：
[1] Univ Elect Sci & Technol China, Coll Comp Sci & Engn, Chengdu 610054, Peoples R China
[2] Logist Engn Univ, Int Ctr Wavelet Anal & Applicat, Chongqing 400016, Peoples R China
来源：
WAVELET ACTIVE MEDIA TECHNOLOGY AND INFORMATION PROCESSING, VOL 1 AND 2 | 2006年
基金：
中国国家自然科学基金;
关键词：
wavelet transform; digital watermarking; copyright protection;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
In this paper, we proposed a strong watermark algorithm for digital image protection based on wavelet. Instead of adding watermark into source image, we use it to generate a standard key to identify the copyright and ownership. The key will be sent to a third party, and there will be no modification to the source, which means this algorithm guarantees perceptual invisibility. We use a 256-level image as watermark and convert every pixel into an 8-bit binary; it has been proven that both stability and amount of embedded information were increased. Besides, taking full advantage of average compare is doubly enhanced the strength. We will illustrate its effectiveness and robustness by showing the detecting result after experimental attacks.
引用
收藏
页码：174 / +
页数：2
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