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Identification of the human eye is the computer face recognition and intelligent control of the important part. This paper presents a projection based on gray curve and edge detection to locate the new algorithm for the human eye. Firstly, original gray projection curve to determine the vertical face of the left and right boundaries, and then use the face region to determine the level of gray projection head to the nose and down the middle of the border, then use the model to estimate the proportion of people face around the eye position analysis the edge of the eye region image, given the exact location of the human eye. Realize that the algorithm is simple, fast and robust