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Method of further compressing JPEG image

  • US 20070019875A1
  • Filed: 07/21/2005
  • Published: 01/25/2007
  • Est. Priority Date: 07/21/2005
  • Status: Abandoned Application
First Claim
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1. A method of further compressing JPEG image, comprising:

  • recovering at least two blocks of DCT coefficients of JPEG image by procedure of decompression procedure of “

    variable length decoding”

    , “

    run-length unpacking”

    , “

    zig-zag scanning” and



    de-quanitzation”

    ;

    removing inter-block or intra-block redundancy of the recovered DCT coefficients of block image; and

    variable length encoding of the selected DCT coefficients from inter-block or intra-block of each block of image.

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