期刊
COMPUTERS & ELECTRICAL ENGINEERING
卷 35, 期 1, 页码 183-188出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compeleceng.2008.09.004
关键词
Watermarking; Nonnegative matrix factorization; DWT
类别
资金
- NSFC [60803136, 60573033]
- Scientific Research Foundation for the Young Teachers in Sun Yat-sen University
- Program for New Century Excellent Talents in University [NCET-05-0397]
This paper presents a novel blind robust digital image watermarking scheme using nonnegative matrix factorization (NMF) in DWT domain. Firstly, the original image is transformed into some subband coefficients using discrete wavelet transformation (DWT), and then a Gaussian pseudo-random watermark sequence is embedded in the factorized decomposition coefficients using NMF. Because of the multiresolution decomposition for DWT and physically meaningful factorization for NMF, the proposed scheme can achieve good robustness, which is also demonstrated in the following experiments. (C) 2008 Elsevier Ltd. All rights reserved.
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