Adaptive digital watermarking algorithm based on wavelet contrast

doi:10.3778/j.issn.1002-8331.2010.26.028

Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (26): 89-90.DOI: 10.3778/j.issn.1002-8331.2010.26.028

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Adaptive digital watermarking algorithm based on wavelet contrast

WEI Wei-yi

1.College of Mathematics and Information Science，Northwest Normal University，Lanzhou 730070，China
2.College of Electrical Engineering and Information Engineering，Lanzhou University of Technology，Lanzhou 730050，China

Received:2009-02-24 Revised:2009-04-01 Online:2010-09-11 Published:2010-09-11
Contact: WEI Wei-yi

基于小波对比度的自适应图像水印算法

魏伟一

1.西北师范大学数学与信息科学学院，兰州 730070
2.兰州理工大学电气工程与信息工程学院，兰州 730050

通讯作者: 魏伟一

Abstract

Abstract: A novel adaptive watermarking method based on wavelet contrast is proposed，It decides adaptively the every block’s embed position and intensity based on the wavelet constrast which can more fit to Human Visual System（HVS）.Theoretical analysis and experiment results show that the algorithm solves the conflict of the watermark robustness and perceptual invisible.And it is robust against normal image processing and attacks.

Key words: digital watermarking, wavelet contrast, wavelet transform

摘要： 提出一种基于小波对比度的小波域自适应水印算法，充分利用小波对比度更适合人类视觉特性的特点自适应地确定小波域上各分块的嵌入的强度和位置。理论分析和实验结果表明，该算法很好地解决了水印鲁棒性和不可见性之间的矛盾，对一般的图像处理和攻击有很好的鲁棒性。

关键词: 数字水印, 小波对比度, 小波域

CLC Number:

TP391

WEI Wei-yi. Adaptive digital watermarking algorithm based on wavelet contrast[J]. Computer Engineering and Applications, 2010, 46(26): 89-90.

魏伟一. 基于小波对比度的自适应图像水印算法[J]. 计算机工程与应用, 2010, 46(26): 89-90.

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Adaptive digital watermarking algorithm based on wavelet contrast

基于小波对比度的自适应图像水印算法

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