Sine the iris is a deeper part of the face, it will be departed and extracted after the binary processing of the face shadow. According to the iris, after the binary processing, it is approximately like a circle (as Fig.5 show). we make an eye template to compare with the location of the eye window after the search preprocessing. Then we extract the best features of the eyes.

The originally proposed eye template consists of a circle separating the iris and the whites of the eye, two parabolas describing the contours of the upper and lower eyelids and two points located at the center of the whites of the eye [11]. After continued experimentation, we remove the shadows of the eyelids, that results from the binary processing, by controlling the light well. Then the shadow of the iris will be shown off enough. We therefore just need to make a round template as an eye template for comparison.

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