Redeye Removal Based on Face Detection and Color Analysis

Redeye is an annoying defect in photographs caused by red light reflected from blood vessels on the retina when a flashgun is used.As the flashgun is close to the lens in a small sized digital camera,the problem becomes even worse.This paper studies detection and removal of red-eyes based on color space analysis,and proposes an automatic red-eye removal technique.Taking into account the prior knowledge of human face,and through experiments on a number of images,an existing approach to face detection is modified.Parameters in an empirical criterion for face detection are determined,resulting in satisfactory segmentation of the skin area.This is used as a basis for further location of eyes and correction of red eyes.Experimental results confirm the effectiveness of the proposed method.