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Automatic detection and correction of non-red eye flash defects

  • US 7,336,821 B2
  • Filed: 02/13/2007
  • Issued: 02/26/2008
  • Est. Priority Date: 02/14/2006
  • Status: Expired due to Fees
First Claim
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1. A method for detecting non-red eye flash defects in an image, said method comprising:

  • (a) defining one or more luminous regions in said image, each region having at least one pixel having luminance above a luminance threshold value and a measure of redness below a red threshold value;

    (b) applying at least one filter to a region corresponding to each luminous region;

    (c) calculating the roundness of a region corresponding to each luminous region; and

    (d) in accordance with said filtering and said roundness, determining whether said region corresponds to a non-red eye flash defect.

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