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MULTI-COLOR DROPOUT FOR SCANNED DOCUMENT

  • US 20080205751A1
  • Filed: 02/26/2007
  • Published: 08/28/2008
  • Est. Priority Date: 02/26/2007
  • Status: Active Grant
First Claim
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1. A method for removing at least one unwanted form color content from scanned image data for a document, the method comprising:

  • a) obtaining the scanned document image data in a color data format;

    b) segmenting the image data into two or more tiles;

    c) classifying each tile into at least first and second sets according to its combination of background and color content;

    d) identifying a background color from the first set of tiles;

    e) identifying at least one form color from the second set of tiles; and

    f) applying a transform that shifts form color image data values toward background color values.

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