DWT-DCT-SVD域的水印置乱新研究
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摘要
为了更好的保护数字产品的版权问题,充分利用了离散小波变换(DWT)、离散余弦变换(DCT)和奇异值分解(SVD)的特征优势,提出了混合域的水印算法。对原始图像进行一级小波离散变换,并对低频子带进行离散余弦变换和奇异值分解。将水印图像进行Arnold变换和伪魔方变换保证安全性,然后再经过离散余弦变换和奇异值分解,最后将水印嵌入到处理过的原始图像奇异值中。实验表明,该方法具有较好的鲁棒性和不可见性,而且能够抵抗常见攻击。
To protect copyrights of digital products effectively,in this paper,an algorithm for digital watermarking based on discrete wavelet transforms( DWT),discrete cosine transforms( DCT) and singular value decomposition( SVD) has been proposed. In the embedding process,the host image is decomposed into first level DWTs. Low frequency band( LL) is transformed by DCT and SVD. The watermark image is firstly transformed by Arnold and pseudo magic square,and then transformed by DCT and SVD. The S vector of watermark information is embedded in the S component of the host image. The experimental based on this algorithm demonstrates that the watermark has good robustness and invisibility which can resist normal attacks.
To protect copyrights of digital products effectively,in this paper,an algorithm for digital watermarking based on discrete wavelet transforms( DWT),discrete cosine transforms( DCT) and singular value decomposition( SVD) has been proposed. In the embedding process,the host image is decomposed into first level DWTs. Low frequency band( LL) is transformed by DCT and SVD. The watermark image is firstly transformed by Arnold and pseudo magic square,and then transformed by DCT and SVD. The S vector of watermark information is embedded in the S component of the host image. The experimental based on this algorithm demonstrates that the watermark has good robustness and invisibility which can resist normal attacks.
引文
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[12]宋莉莉,杨帆,潘国峰.Arnold变换与Gray码变换相融合的双置乱算法研究[J].计算机应用与软件,2016,33(3):304-307.
[13]于万波.基于MATLAB的图像处理[M].北京:清华大学出版社,2011.
[14]罗向阳.数字图像隐写检测关键问题研究[D].郑州:解放军信息工程大学,2010.
[2] ZHANG Xinpeng,WANG Shuozhong. Efcient Steganographic Embedding by Exploiting Modication Direction[J]. IEEE Communications Letters,2006,10(11):781-783.
[3]李旭东.抗JPEG压缩攻击的DWT域图像量化水印算法[J].光电子.激光,2012,23(02):342-348.
[4]张勤,崔丽.基于DWT的一种数字水印算法[J].北京师范大学学报(自然科学版),2015,51(01):19-22.
[5] J. JENNIFER RANJANI. Data hiding using pseudo magic squares for embedding high payload in digital images[J].Multimed Tools Appl.2017,76:3715-3729.
[6] LINYK. High Capacity Reversible Data Hiding Scheme based upon Discrete Cosine Transformation[J]. J. Sys. and Softw..2012,85(10):2395–2404.
[7] SINGH AK,DAVE M,MOHAN A.Hybrid Technique for Robust and Imperceptible Image Watermarking in DWTDCT-SVD Domain[J]. Nat. Acad. Sci. Lett.,Springer,2014,37(4):351–358.
[8]周鹏颖,等.基于小波——奇异值分解的数字水印新算法[J].计算机应用研究,2010,27(5):1896-1897.
[9]陈亮,等.基于整数小波变换的数字图像可逆水印算法[J].计算机应用与软件,2016,33(4):286-291.
[10]王娟,等.联合奇异值分解与余弦相似性推荐的盲水印算法[J].小型微型计算机系统,2015,36(12):2784-2788.
[11]叶天语. DWT-SVD域全盲自嵌入鲁棒量化水印算法[J].中国图像图形学报,2012,17(6):644-650.
[12]宋莉莉,杨帆,潘国峰.Arnold变换与Gray码变换相融合的双置乱算法研究[J].计算机应用与软件,2016,33(3):304-307.
[13]于万波.基于MATLAB的图像处理[M].北京:清华大学出版社,2011.
[14]罗向阳.数字图像隐写检测关键问题研究[D].郑州:解放军信息工程大学,2010.