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System and method for enhancement of document images

  • US 20040042680A1
  • Filed: 03/24/2003
  • Published: 03/04/2004
  • Est. Priority Date: 08/29/2002
  • Status: Active Grant
First Claim
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1. A method for enhancement of electronic images of a document, the electronic images having a background with foreground markings placed thereon, the method comprising:

  • receiving an electronic image comprised of pixels;

    assigning initial provisional foreground/background status to said pixels to form an initial foreground/background estimate;

    revising said initial foreground/background estimate to form a revised foreground/background estimate;

    determining whether said revised foreground/background estimate is the final foreground/background assignment for said pixels;

    repeating revising said revised foreground/background estimate until said final foreground/background assignment for said pixels is achieved; and

    providing said final foreground/background assignment for said pixels.

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