A novel blind watermarking method based on distance vector of significant wavelet coefficients

This paper proposes an efficient blind watermarking algorithm using distance vector for copyright protection. In this algorithm, the wavelet coefficients from various frequency locations have been grouped into a sequence and named as Group for invisible watermark embedding and extraction. In the nex...

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Bibliographic Details
Published in2010 6th Iranian Conference on Machine Vision and Image Processing pp. 1 - 6
Main Authors Hajizadeh, M., Helfroush, M. S., Dehghani, M. J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2010
Subjects
Blind watermarking
Copyright protection
Distance vector
Image coding
PSNR
Robustness
Significant coefficients
Transform coding
Watermarking
Wavelet
Wavelet coefficients
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Summary:This paper proposes an efficient blind watermarking algorithm using distance vector for copyright protection. In this algorithm, the wavelet coefficients from various frequency locations have been grouped into a sequence and named as Group for invisible watermark embedding and extraction. In the next step, after choosing the maximum and second maximum amplitude coefficients of each Group, the distance vector between two coefficients is computed. For embedding bit zero and bit 1, values of the distance vector elements are decreased or increased, respectively. The proposed method, takes advantage of considerable robustness against prevalent attacks. Comparison analysis demonstrates that our method has better performance than the other watermarking schemes reported recently and also watermarked images do not suffer from obvious visual distortion.
ISBN:142449706X
9781424497065
ISSN:2166-6776
DOI:10.1109/IranianMVIP.2010.5941147