An Algorithm to Improve the Performance of Watermarking Systems

Random permutation and sharpening are basic methods of image processing. In some digital image watermarking schemes, if original image is pre-processed with random permutation before embedding and the watermarked image is pre-processed with sharpening before detecting, the performance of watermarkin...

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Bibliographic Details
Published in2008 Congress on Image and Signal Processing Vol. 5; pp. 664 - 668
Main Authors Xu, Duan-quan, Zhu, Guang-xi
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2008
Subjects
blind detection
Copyright protection
Cryptography
Digital images
digital watermarking
Discrete cosine transforms
Gaussian distribution
Image processing
Image storage
random permutation
Robustness
sharpening
Signal processing algorithms
spread spectrum communication
Watermarking
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Summary:Random permutation and sharpening are basic methods of image processing. In some digital image watermarking schemes, if original image is pre-processed with random permutation before embedding and the watermarked image is pre-processed with sharpening before detecting, the performance of watermarking systems can be improved, that means the images can seem better, or the veracity rate of detection is higher. In this article, this method is validated in Barni's semi-blind watermarking system. The method is suitable for some semi-blind or blind watermarking systems, whether in spatial domain or in other transform domain.
ISBN:9780769531199
0769531199
DOI:10.1109/CISP.2008.419