Improved performance of image watermarking by removing luminance bias
Conference proceedings article
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Author list: Mettripun N., Amornraksa T.
Publisher: Hindawi
Publication year: 2009
Start page: 533
End page: 536
Number of pages: 4
ISBN: 9781424450169
ISSN: 0146-9428
eISSN: 1745-4557
Languages: English-Great Britain (EN-GB)
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Abstract
A digital watermarking for color image based on the modification of image pixels is considered in this paper. Its performance is analyzed and the weakness in the watermark extraction method is addressed. Based on our analysis, a method based on the removal of the luminance bias is then proposed in order to improve the watermark extraction performance. The experimental results obtained verify our proposed concept, and show the improvements in term of PSNR and NC of the proposed watermarking method, compared to the previous method proposed in [7]. The robustness of the embedded watermark against three different types of common image processing based attacks are also evaluated and compared. ฉ2009 IEEE.
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