Journal
ALGORITHMS
Volume 2, Issue 1, Pages 46-75Publisher
MDPI
DOI: 10.3390/a2010046
Keywords
digital image watermarking; Singular Value Decomposition; singular vectors; orthogonality; security
Funding
- World Wide Style Mobility Project - CRT Foundation
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In this paper, a block-based watermarking scheme based on the Singular Value Decomposition (SVD) is proposed. Our watermark, a pseudo-random Gaussian sequence, is embedded by modifying the angles formed by the right singular vectors of each block of the original image. The orthogonality property of the right singular vector matrix is preserved during the embedding process. Several experiments have been carried out to test the performance of the proposed scheme against different attack scenarios. We conclude that the proposed scheme is resistant against common signal processing operations and attacks, while it preserves the quality of the original image.
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