Bhowmik, D. and Abhayaratne, C. (2009) A generalised model for distortion performance analysis of wavelet based watermarking. In: Kim, H.J., Katzenbeisser, S. and Ho, A. T. S. , (eds.) Digital Watermarking. Springer Berlin Heidelberg , pp. 363-378.
Abstract
A model for embedding distortion performance for wavelet based watermarking is presented in this paper. Firstly wavelet based watermarking schemes are generalised into a single common framework. Then a mathematical approach has been made to find the relationship between distortion performance metrics and the watermark embedding parameters. The derived model shows that for wavelet based watermarking schemes the sum of energy of the selected wavelet coefficients to be modified is directly proportional to the distortion performance (the mean square error) measured in the pixel domain. The propositions are made using the energy conservation theorem between input signal and transform domain coefficients for orthonormal wavelet bases. Such an analysis is useful to choose the wavelet coefficients during watermark embedding procedure and to find suitable input parameters such as wavelet kernel or the choice of subband.
Metadata
Item Type: | Book Section |
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Authors/Creators: |
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Editors: |
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Keywords: | Image watermarking, wavelet transforms, distortion performance. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Funding Information: | Funder Grant number EPSRC BP - EPSRC Dorothy Hodgkin Postgraduate Award |
Depositing User: | Dr Deepayan Bhowmik |
Date Deposited: | 24 Jul 2013 09:38 |
Last Modified: | 27 Mar 2018 07:26 |
Published Version: | http://dx.doi.org/10.1007/978-3-642-04438-0_31 |
Status: | Published |
Publisher: | Springer Berlin Heidelberg |
Refereed: | Yes |
Identification Number: | 10.1007/978-3-642-04438-0_31 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:76018 |