Image analysis – Applications – Personnel identification
Patent
1997-10-23
2000-01-18
Kelley, Christopher S.
Image analysis
Applications
Personnel identification
382115, 382162, 382164, 382167, 382168, 382169, 382171, 382172, 358518, 358527, G06K 900
Patent
active
060163542
ABSTRACT:
A red-eye reduction system is described that includes a masking module. The masking module converts an image into a mask having first state areas representing red color pixels of the image and second state areas representing other color pixels of the image. The image includes an eye with a red pupil. A pupil locating module is coupled to the masking module to locate a substantially first state area in the mask that resembles a pupil. A color replacing module is then coupled to the pupil locating module to change the red color pixels in the area into monochrome (grey) or other predefined colors. The color replacing module also adjusts the boundary of the area by changing the colors of pixels in close proximity to the area if the color of these pixels is determined to be sufficiently close to red such that natural appearance of the eye is maintained when reducing the red pupil. A method of reducing red-eye effect in a digital image is also described.
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Sung et al., "A Video Eye Tracking System Based on a Statistical Algorithm", pp. 438-411, Dept. of Electrical Eng. & Computer Science, The Univesity of Michigan, Ann Arbor, MI.
Konstantinides Konstantinos
Lin Qian
Patti Andrew
Tretter Daniel R.
Chawan Sheela
Hewlett--Packard Company
Kelley Christopher S.
Li Thomas X.
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