Robust Digital Image Watermarking Based on Joint DWT-DCT
作者： Ahmad R. Naghsh-Nilchi
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摘要: In this paper, a new robust digital image watermarking algorithm based on Joint DWT-DCT Transformation is proposed. A binary watermarked logo scrambled by Arnold cat map and embedded in certain coefficient sets of 3-level DWT transformed host image. Then, DCT transform each selected sub-band computed the PN-sequences watermark bits are middle frequencies coefficients corresponding block. extraction procedure, image, which maybe attacked, pre-filtered combination sharpening Laplassian Gaussian filters to increase distinction between information. Subsequently, same procedures as embedding process used extract sub-band. Finally, correlation mid-band PNsequences calculated determine bits. Experimental results show that high imperceptibility provided well higher robustness against common signal processing attacks. compare current algorithms joint DWT-DCT, proposed system achieved significantly enhancement noise addition
参考文章(18)
R. Tay, J.P. Havlicek, Image watermarking using wavelets midwest symposium on circuits and systems. ,vol. 3, ,(2002) , 10.1109/MWSCAS.2002.1187021
V.M. Potdar, S. Han, E. Chang, A survey of digital image watermarking techniques international conference on industrial informatics. pp. 709- 716 ,(2005) , 10.1109/INDIN.2005.1560462
Serkan Emek, Melih Pazarci, Additive vs. Image Dependent DWT-DCT Based Watermarking Multimedia Content Representation, Classification and Security. pp. 98- 105 ,(2006) , 10.1007/11848035_15
Vladimir Britanak, Patrick Yip, K. R. Rao, Discrete Cosine Transform: Algorithms, Advantages, Applications ,(1990)
Hasan Soltanzadeh, Mohammad Rahmati, Recognition of Persian handwritten digits using image profiles of multiple orientations Pattern Recognition Letters. ,vol. 25, pp. 1569- 1576 ,(2004) , 10.1016/J.PATREC.2004.05.014
Hossein Khosravi, Ehsanollah Kabir, Introducing a very large dataset of handwritten Farsi digits and a study on their varieties Pattern Recognition Letters. ,vol. 28, pp. 1133- 1141 ,(2007) , 10.1016/J.PATREC.2006.12.022
Andrew B. Watson, DCT quantization matrices visually optimized for individual images IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology. ,vol. 1913, pp. 202- 216 ,(1993) , 10.1117/12.152694
Jelena Kovačevic, Martin Vetterli, Wavelets and Subband Coding ,(1995)
A. Adhipathi Reddy, B.N. Chatterji, A new wavelet based logo-watermarking scheme Pattern Recognition Letters. ,vol. 26, pp. 1019- 1027 ,(2005) , 10.1016/J.PATREC.2004.09.047
Ali Al-Haj, Combined DWT-DCT Digital Image Watermarking Journal of Computer Science. ,vol. 3, pp. 740- 746 ,(2007) , 10.3844/JCSSP.2007.740.746