Algorithm of Digital Watermark Based on Wavelet

被引：0
|
作者：
Lai, Siyu [1 ]
Wang, Juan [2 ]
机构：
[1] North Sichuan Med Coll, Dept Med Imaging, Nanchong, Peoples R China
[2] China West Normal Univ, Coll Comp Sci, Nanchong, Peoples R China
来源：
PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON COMPUTER AND INFORMATION APPLICATIONS (ICCIA 2012) | 2012年
关键词：
digital watermarking; human visual system; discrete wavelet transform; algorithm;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
Analyze a human visual model based wavelet domain digital watermark algorithm and improved it. First conduct multi-level wavelet decomposition on original image and modify medium frequency coefficient, and then adapt the algorithm to embed the watermark into the source image. The experiment shows that the watermark embedded image enjoys better imperceptibility and robustness to JPEG compression, add gaussian noise, contrast enhancement e.t. traditional image processing operations.
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页码：1592 / 1595
页数：4
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