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Encoding and decoding of color digital image using wavelet and fractal encoding

  • US 6,002,794 A
  • Filed: 08/26/1997
  • Issued: 12/14/1999
  • Est. Priority Date: 04/08/1996
  • Status: Expired due to Fees
First Claim
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1. A method for compressing color digital image data, wherein said color digital image data is separated into a plurality of different color data groups, comprising the steps of:

  • transforming one of said groups of color data into a different selected color, wherein said different selected color is more indicative of edges in said image than said data group which is transformed;

    spatially decomposing each of said groups of image data into high frequency and low frequency images at a plurality of scales of decreasing frequencies;

    fractally encoding said high frequency data for each said group responsive to said high frequency data at said scales generated for said group; and

    storing separately encoded data for each said group data responsive to said fractal encoding and comprising information representing modulus and angle relationships between portions of said image at said plurality of scales.

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