The IWT allows both lossy and lossless compression using a single bitstream. In this paper, a low-complexity, efficient embedded hybrid-coding algorithm so-called embedded subband partitioning block arithmetic coding (ESPBA) is presented. The new algorithm firstly selects a segmentation threshold based on the integer powers of two. All image coefficients above this threshold are encoded using simple quadtree partitioning scheme. The residual image coefficients below the threshold are encoded using block arithmetic coding based on context modeling. Experimental results show that ESPBA method has better PSNR performance than based-IWT SPIHT for lossy compression. The lossless compression performance of the presented method is comparable to JPEG-LS and SPIHT.


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    Title :

    Embedded hybrid coding for lossy to lossless image compression using integer wavelet transform


    Contributors:


    Publication date :

    2006-01-01


    Size :

    2426711 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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