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Coder matched layer separation and interpolation for compression of compound documents

  • US 20030133617A1
  • Filed: 01/14/2002
  • Published: 07/17/2003
  • Est. Priority Date: 01/14/2002
  • Status: Active Grant
First Claim
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1. A method of decomposing an image comprising the steps of:

  • a) decomposing the image into a plurality of stripes;

    b) decomposing each stripe into foreground and background image layers, and a mask layer; and

    c) applying a smoothing filter to interpolate irrelevant pixel values in the foreground and background layers for wavelet encoding efficiency.

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