Method for detecting and database establishing based on skin color of face image

The invention discloses a method for detecting and database establishing based on skin color of a face image which is a color image and contains a lot of pixels. The method includes the steps of (a) determining the left eyebrow position, the right eyebrow position, the left eye position, the right eye position, the left mouth position, the right mouth position, the lower lip position and the chin position of the face in the face image; (B) determining at least one candidate pixel located between the left eyebrow position and the right eyebrow position, at least one candidate pixel located between the left eye position and the left mouth position, at least one candidate pixel between the right eye position and the right mouth position, and at least one candidate pixel located between the lower lip position and the chin position; and (c) determining the face color according to the candidate pixels. In addition, the above-described face skin color detection method is utilized to establish a face skin color datab