In this paper we propose an efficient data embedding algorithm for palette-based images by quantising similar colours in the palette. Unlike previous algorithms, this method's rate-distortion behaviour is independent from the embedding message, so that given the length of the embedding message, the distortion on the host image can be determined before embedding. Experiments show that our method outperforms previous methods both in terms of PSNR and visual quality.


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    Titel :

    A palette-based image steganographic method using colour quantisation


    Beteiligte:
    Xuefeng Wang, (Autor:in) / Then Yao, (Autor:in) / Chang-Tsun Li, (Autor:in)


    Erscheinungsdatum :

    01.01.2005


    Format / Umfang :

    214824 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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