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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/59993

    Title: Watermarking technique based on DWT associated with embedding rule
    Authors: Yeh, Jih-pin;Lu, Che-wei;Lin, Hwei-jen;Wu, Hung-Hsuan
    Contributors: 淡江大學資訊工程學系
    Keywords: watermarking;steganography;discrete wavelet transform (DWT);embedding rule
    Date: 2010-08
    Issue Date: 2011-10-05 22:33:42 (UTC+8)
    Publisher: North Atlantic University Union
    Abstract: Information hiding has been an important research topic for the past several years. Techniques to solve the problem of unauthorized copying, tampering, and multimedia data delivery through the internet are urgently needed. Today’s information hiding techniques consist mainly of steganography and digital watermarking. In this paper, we shall focus on the digital watermarking and propose an improved version of the integer discrete wavelet transform (integer-DWT)-based watermarking technique proposed by Chang et al. [17]. Our method is able to achieve ownership protection. First, the original image is performed with the Discrete Wavelet Transformation (DWT) and embedded with the watermark in the HL and LH blocks associated with an embedding rule. The experimental results show that the proposed approach indeed produces better results than the compared method in terms of the quality of the stego image, the extracted watermark with or without attack, and time efficiency.
    Relation: International Journal of Circuits, Systems and Signal Processing 4(2), pp.72-82
    Appears in Collections:[Graduate Institute & Department of Computer Science and Information Engineering] Journal Article

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