Front Inner Page - Vol. 3, No.2, April 2016

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  • Title

    :

    A Reversible Lossless Compression Technique with Patch-Wise Code Formation for Image Compression and Decompression

    Authors

    :

       Murugan. H1, PerumaBalasubramani2 , Dr.M.PallikondaRajasekaran3

    Keywords

    :

    Image processing, Compression, Pixel grouping, Decoding and Patch wise coding.

    Issue Date

    :

    April– 2016

    Abstract

    :

    In present days, health care taken a step further towards telemedicine. The telemedicine bridges the physical distance between the physician and the patients. However, the transfer of medical images over a network requires lot of preprocessing to ensure the quality of view and hence the quality of diagnosis. Various image compression strategies have been utilized yet the existing methods for compression process are not completely reversible. Hence, this paper proposes a reversible, lossless compression technique combined with patch-wise code formulation. The work removes the redundant irrelevant informationby dividing the images into patches and the recurrent pixels in the patches were codedwith the help of code formation block. The decompression process is performed over the received image by following the same procedure in reverse fashion to obtain the decompressed image. The process is completely reversible and hence the process can be employed in the transmission of the images effectively. The performance of the proposed work is measured with simulations over medical images in terms of the compression ratio, Mean square error, and PSNR and SNR values. The performance metrics measured indicates that the proposed compression process is completely reversible and original pixel informations were well preserved.

    Page(s)

    :

    23-28

    ISSN

    :

    2347- 4734

    Source

    :

    Vol. 3, No.1, April 2016

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