Abstract: A face image processing system capable of setting an eye detecting region with ease and high accuracy by making use of the position and the width of the nares presenting a unique shape among the face characterizing features. The system mentioned above includes a face image input means for inputting a face image, a binarizing means for binarizing the face image as inputted, a characteristic element extracting means for extracting face characterizing elements from a binary image outputted from the binarizing means, a naris extracting means for extracting nares from the characteristic elements extracted, and an eye extracting means for setting an eye detecting region with reference to a reference position provided by the nares for thereby extracting the eyes.