A spectral images digital watermarking algorithm

Authors:
Long Ma;Changjun Li;Shuni Song
Affiliations:
School of Information Science & Engineering, Northeastern University, Shenyang, China;Department of Color Chemistry, University of Leeds, Leeds, UK;School of Science, Northeastern University, Shenyang, China
Venue:
CIS'05 Proceedings of the 2005 international conference on Computational Intelligence and Security - Volume Part II
Year:
2005

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Abstract

In this paper we propose a technique to embed a digital watermark containing copyright information into a spectral images. The watermark is embedded by modifying the singular values in PCA/DWT domain of the spectral images. After modification the image is reconstructed by inverse processing, thus containing the watermark. We provide analysis of watermark’s robustness against attacks. The attacks include lossy compression and median filtering. Experimental results indicate that the watermark algorithm performs well in robustness.