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    Geometrically invariant watermarking using affine covariant regions

    Deng, C. and Gao, X. and Tao, D. and Li, Xuelong (2008) Geometrically invariant watermarking using affine covariant regions. In: UNSPECIFIED (ed.) International Conference on Image Processing. New York, USA: Institute of Electrical and Electronics Engineers, pp. 413-416. ISBN 9781424417650.

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    In this paper, we present a robust approach to digital watermarking embedding and retrieval for digital images. The affine-invariant point detector is used to extract feature regions of the given host image. Image normalization and dominant gradient orientation alignment are applied to these feature regions to achieve scaling and rotation invariance. Thereafter, watermarks are embedded in these feature regions. The advantage of this proposed approach is demonstrated by a large amount of experiments, which can against different attacks, such as common image processing, rotation, scaling, cropping, and several other affine transformations.


    Item Type: Book Section
    School: Birkbeck Faculties and Schools > Faculty of Science > School of Computing and Mathematical Sciences
    Depositing User: Sarah Hall
    Date Deposited: 12 Jul 2013 09:35
    Last Modified: 09 Aug 2023 12:33


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