A morphological subband decomposition with perfect reconstruction is proposed. Critical subsampling is achieved. Reconstructed images using this decomposition do not suffer from any ringing effect. In order to avoid poor texture representation by morphological filters an adaptive subband decomposition is introduced. It chooses linear filters on textured regions and morphological filters otherwise. Comparisons to other coding techniques such as JPEG and linear subband coding show that the proposed scheme performs significantly better both in terms of PSNR and visual quality.<>


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    Title :

    Very low bit rate image coding using morphological operators and adaptive decompositions


    Contributors:
    Egger, O. (author) / Wei Li (author)


    Publication date :

    1994-01-01


    Size :

    451670 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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