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Red Eye False Positive Filtering Using Face Location and Orientation

  • US 20080219518A1
  • Filed: 03/05/2008
  • Published: 09/11/2008
  • Est. Priority Date: 03/05/2007
  • Status: Active Grant
First Claim
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1. A method of detecting and correcting a red-eye defect within a digital image, comprising:

  • (a) acquiring an image including one or more non red eye defect regions having a red color;

    (b) performing in a first stage an initial segmentation of candidate redeye regions to determine a first set of one or more confirmed redeye regions designated for correction;

    (c) determining a location and orientation of any faces within the image;

    (d) analyzing the first set of confirmed redeye regions based on the determined location and orientation of said any faces, or based on a determination that there are no faces present within the image, to determine a probability that each confirmed redeye region appears at a position of an eye;

    (e) removing from the first set any confirmed redeye regions having at least a certain threshold probability of being a false positive, and thereby generating a second set;

    (f) correcting the second set of confirmed red eye regions and generating a red eye corrected image which has the second set of confirmed red eye regions corrected therein; and

    (g) electronically storing, transmitting, further processing or editing, or displaying the red eye corrected image, or combinations thereof.

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