Comments on "An SVD-based watermarking scheme for protecting rightful Ownership"
Citations Over TimeTop 10% of 2005 papers
Abstract
In a recent paper by Tan and Liu , a watermarking algorithm for digital images based on singular value decomposition (SVD) is proposed. This comment demonstrates that this watermarking algorithm is fundamentally flawed in that the extracted watermark is not the embedded watermark but determined by the reference watermark. The reference watermark generates the pair of SVD matrices employed in the watermark detector. In the watermark detection stage, the fact that the employed SVD matrices depend on the reference watermark biases the false positive detection rate such that it has a probability of one. Hence, any reference watermark that is being searched for in an arbitrary image can be found. Both theoretical analysis and experimental results are given to support our conclusion.
Related Papers
- → <title>Watermark copy attack</title>(2000)146 cited
- CDMA based blind and reversible watermarking scheme for images in Wavelet domain(2012)
- → <title>Synchronization-insensitive video watermarking using structured noise pattern</title>(2002)15 cited
- → Geometric robust watermarking through watermark pattern shaping(2004)4 cited
- An Asymmetric Digital Watermarking Algorithm Based on 2DFT(2007)