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Systems and Methods for Skin-Color-Cognizant Color Mapping

  • US 20090141971A1
  • Filed: 11/30/2007
  • Published: 06/04/2009
  • Est. Priority Date: 11/30/2007
  • Status: Active Grant
First Claim
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1. A method for adjusting image color values, said method comprising:

  • a) dividing a first color gamut into a plurality of regions;

    b) defining control points at the vertices of said regions;

    c) selecting a target color, wherein said target color is defined by first target coordinates related to said first color gamut;

    d) determining a first color region, in said plurality of regions, where said first color is located;

    e) determining first color region control point coordinates for said control points corresponding to said first color region;

    f) determining a target color weighting vector using said first target coordinates and said first color region control point coordinates;

    g) converting said first color region control point coordinates to relate to a second color gamut thereby creating second-gamut control point coordinates; and

    h) calculating second-gamut target color coordinates related to said second color gamut by combining said target color weighting vector with said second-gamut control point coordinates.

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