A robust blind image watermarking based on Double Haar Wavelet Transform (DHWT)

被引：0

作者：

Maheswari, S. ^{[1
]}

Rameshwaran, K. ^{[2
]}

机构：

[1] Kongu Engn Coll, Dept EEE, Perundurai 638052, Erode, India

[2] MAM Grp Inst, Tiruchirappalli 621105, Tamil Nadu, India

来源：

JOURNAL OF SCIENTIFIC & INDUSTRIAL RESEARCH | 2012年 / 71卷 / 05期

关键词：

Digital watermarking; Double Haar Wavelet Transform (DHWT); M-channel filter bank; Singular Value Decomposition (SVD);

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study proposes a blind watermarking algorithm based on Double Haar Wavelet Transform (DHWT) for copyright protection of digital images. Watermark embedding is performed in wavelet transform domain. DHWT is applied to the original cover image and binary watermark. Singular value decomposition (SVD) is applied on selected subband of cover image and binary watermark. Eigen values of selected subband of cover image are replaced by Eigen values of selected subband of binary watermark, which are multiplied with an appropriate strength factor. Proposed algorithm achieved very high imperceptibility, evidenced by high PSNR value for gray scale images, and produced very high robustness against image processing attacks.

引用

页码：324 / 329

页数：6

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