BIROn - Birkbeck Institutional Research Online

    A local Tchebichef moments-based robust image watermarking

    Deng, C. and Gao, X. and Li, Xuelong and Tao, D. (2009) A local Tchebichef moments-based robust image watermarking. Signal Processing 89 (8), pp. 1531-1539. ISSN 0165-1684.

    Full text not available from this repository.

    Abstract

    Protection against geometric distortions and common image processing operations with blind detection becomes a much challenging task in image watermarking. To achieve this, in this paper we propose a content-based watermarking scheme that combines the invariant feature extraction with watermark embedding by using Tchebichef moments. Harris-Laplace detector is first adopted to extract feature points, and then non-overlapped disks centered at feature points are generated. These disks are invariant to scaling and translation distortions. For each disk, orientation alignment is then performed to achieve rotation invariant. Finally, the watermark is embedded in magnitudes of Tchebichef moments of each disk via dither modulation to realize the robustness to common image processing operations and the blind detection. Thorough simulation results obtained by using the standard benchmark, Stirmark, demonstrate that the proposed method is robust against various geometric distortions as well as common image processing operations and outperforms representative image watermarking schemes.

    Metadata

    Item Type: Article
    Keyword(s) / Subject(s): Digital watermarking, geometric distortion, feature regions, Tchebichef moments, Harris-Laplace detector
    School: Birkbeck Schools and Departments > School of Business, Economics & Informatics > Computer Science and Information Systems
    Depositing User: Administrator
    Date Deposited: 07 Feb 2011 13:42
    Last Modified: 11 Oct 2016 15:27
    URI: http://eprints.bbk.ac.uk/id/eprint/1849

    Statistics

    Downloads
    Activity Overview
    0Downloads
    123Hits

    Additional statistics are available via IRStats2.

    Archive Staff Only (login required)

    Edit/View Item Edit/View Item