The problem of reconstructing a continuous-tone image given its ordered dithered halftone image is considered. We utilize a modular class of non-linear filters, denoted as binary permutation filters, which can reconstruct the continuous-tone information as well as image details which provide important visual cues. Binary permutation filters are based on the space-rank ordering of the halftone samples which is provided by the multiset permutation of the "on" pixels in a halftone observation window. By varying the space-rank order information utilized in the estimate, for a given window size, we obtain a wide range of filters. We present simulations showing that binary permutation filters are modular, robust to image source characteristics, and that their results produce high visual quality image reconstruction.<>


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    Titel :

    Inverse ordered dithered halftoning using permutation filters


    Beteiligte:
    Yeong-Taeg Kim (Autor:in) / Arce, G.R. (Autor:in)


    Erscheinungsdatum :

    01.01.1994


    Format / Umfang :

    583103 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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