Abhayaratne, Charith and Bhowmik, Deepayan (2011) Scalable watermark extraction for real-time authentication of JPEG 2000 images. Journal of Real-Time Image Processing, 6 (4). pp. 307-325. ISSN 1861-8200
Abstract
This paper proposes a novel scalable authentication scheme that utilizes the progressive enhancement functionality in JPEG 2000 scalable image coding. The proposed method first models the wavelet-based quality scalable coding to identify the effect of the quantization and de-quantization on wavelet coefficient magnitudes and the data embedded within such coefficients as a watermark. A relationship is then established between the watermark extraction rule and the embedding rule, using the magnitudes of the reconstructed and original coefficients. It ranks the wavelet coefficients according to their ability to retain the embedded watermark data intact under various quantization levels corresponding to quality enhancements. Then watermark data is embedded into wavelet coefficients according to their rank followed by JPEG 2000 embedded coding. At the decoder as more and more quality and resolution layers are decoded the authentication metric is improved, thus resulting in gradually increasing complexity of the authentication process according to the number of quality and resolution enhancements. The low complexity authentication is available at low quality low resolution decoding, enabling real-time authentication for resource constrained applications without affecting the authentication metric. Compared to the existing methods, the proposed method results in highly robust scalable authentication of JPEG 2000 coded images.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2011 Springer. This is an author produced version of a paper subsequently published in Journal of Real-Time Image Processing. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Scalable authentication, wavelet-based watermarking, JPEG 2000, quality scalability, watermark robustness, image watermarking, quantization, wavelet. |
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 Engineering and Physical Science Research Council, UK BP-EPSRC Dorothy Hodgkin Postgraduate Award |
Depositing User: | Dr Deepayan Bhowmik |
Date Deposited: | 12 Nov 2013 13:50 |
Last Modified: | 29 Mar 2018 16:37 |
Published Version: | http://dx.doi.org/10.1007/s11554-011-0218-5 |
Status: | Published |
Publisher: | Springer Berlin Heidelberg |
Refereed: | Yes |
Identification Number: | 10.1007/s11554-011-0218-5 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:76019 |