Song, C, Sudirman, S and Merabti, M (2011) Region Adaptive Digital Image Watermarking System Using DWT-SVD Algorithm. In: 12th Annual Postgraduate Symposium on Convergence of Telecommunications, Networking and Broadcasting, 27th - 28th June 2011, Liverpool.

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Abstract

Improving the robustness of watermark in withstanding attacks has been one of the main research objectives in digital image watermarking. In this paper we propose a novel region-adaptive watermarking technique that can provide improvements in both robustness and visual quality of the watermarks when compared to the original, non-region-adaptive, embedding technique. The proposed technique, which is derived from our previously published research finding, shows that the relative difference in spectral distributions between the watermark data and the host image plays an important role in improving the watermark robustness and transparency.

Keywords – Quad-tree algorithm, discrete wavelet transform, region-based watermarking system.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions:	Computer Science and Mathematics
Publisher:	http://www.cms.livjm.ac.uk/pgnet2011/Proceedings/Papers/m1569452837-song.pdf
Date Deposited:	17 Jul 2015 08:52
Last Modified:	13 Apr 2022 15:13
URI:	https://researchonline.ljmu.ac.uk/id/eprint/1649

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