Bhowmik, D. and Abhayaratne, C. (2009) Embedding distortion modeling for non-orthonormal wavelet based watermarking schemes. In: Proc. SPIE 7248, Wavelet Applications in Industrial Processing VI. SPIE 7248, January 18, 2009, San Jose, CA. , 72480K-72480K.
Abstract
In this paper a universal embedding distortion model for wavelet based watermarking is presented. The present work extends our previous work on modelling embedding distortion for watermarking algorithms that use orthonormal wavelet kernels to non-orthonormal wavelet kernels, such as biorthogonal wavelets. By using a common framework for major wavelet based watermarking algorithms and the Parseval's energy conservation theorem for orthonormal transforms, we propose that the distortion performance, measured using the mean square error (MSE), is proportional to the sum of energy of wavelet coefficients to be modified by watermark embedding. The extension of the model to non-orthonormal wavelet kernel is obtained by rescaling the sum of energy of wavelet coefficients to be modified by watermark embedding using a weighting parameter that follows the energy conservation theorems in wavelet frames. The proposed model is useful to find optimum input parameters, such as, the wavelet kernel, coefficient selections and subband choices, for a given wavelet based watermarking algorithm.
Metadata
Item Type: | Proceedings Paper |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Author's version uploaded according to the publisher's self-archiving policy. |
Keywords: | Image watermarking, wavelet, distortion performance, non-orthonormal wavelet kernel, biorthogonal wavelet. |
Dates: |
|
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 BP - EPSRC Dorothy Hodgkin Postgraduate Award UNSPECIFIED |
Depositing User: | Dr Deepayan Bhowmik |
Date Deposited: | 24 Jul 2013 12:57 |
Last Modified: | 26 Mar 2018 11:54 |
Published Version: | http://dx.doi.org/10.1117/12.810719 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1117/12.810719 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:76009 |