Comments on "Robust embedding of visual watermarks using discrete wavelet transform and singular value decomposition" and theoretical analysis

Liang Xiao; Zhihui Wei; Jianbing Ye

doi:10.1117/1.3041170

1 October 2008 Comments on “Robust embedding of visual watermarks using discrete wavelet transform and singular value decomposition” and theoretical analysis

Liang Xiao, Zhihui Wei, Jianbing Ye

Author Affiliations +

Journal of Electronic Imaging, Vol. 17, Issue 4, 040501 (October 2008). https://doi.org/10.1117/1.3041170

Abstract

It is shown that the watermarking algorithm presented in another paper [Ganic and Eskicioglu, J. Electron. Imaging 14, 043004 (2005)] has a very high probability of a false-positive answer and has its limitations in practice. Furthermore, the intrinsic reasons of the high false-alarm probability are as follows: the basis space of singular value decomposition is image content dependent, there is no one-to-one correspondence between singular value vector and image content, because singular value vectors have no information on the structure of image. Thus, the most important reason is a result of a false conception to insert watermark singular value vectors without information on the structure of the watermark. Finally, some examples are given to prove our results of theoretical analysis.

©(2008) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Liang Xiao, Zhihui Wei, and Jianbing Ye "Comments on “Robust embedding of visual watermarks using discrete wavelet transform and singular value decomposition” and theoretical analysis," Journal of Electronic Imaging 17(4), 040501 (1 October 2008). https://doi.org/10.1117/1.3041170

Published: 1 October 2008

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