1 October 2008 Comments on “Robust embedding of visual watermarks using discrete wavelet transform and singular value decomposition” and theoretical analysis
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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)
Liang Xiao, Liang Xiao, Zhihui Wei, Zhihui Wei, Jianbing Ye, 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 . Submission:
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