1. A method for setting a lip region of a lace included in an image, the method comprising the steps of: setting at least a first region and a second region in the image including the face; identifying contrast information of the first region; setting a threshold for binarization using the contrast information; binarizing the second region based on the threshold; setting a region in which a pixel having an identical binary value is continuously distributed within a predetermined number of ranges in the binarized image as an eye candidate object; extracting an eye region from the eye candidate object based on geometric characteristics of the eye region in the image; and setting the lip region with reference to the extracted eye region based on geometric information of the eye region and geometric information of the lip region.