Aiming at the main failure form of fear face

its image characteristics of extraction technology is studied.According to two different kinds of defects in the form of image

the defect area is extracted as the eigenvalue.By using gray level co-occurrence matrix

the contrast is extracted as the image characteristic

according to the morphological characteristic of the image

the eccentricity and the circular degree is extracted as eigenvalue.By using the fuzzy neighbor domain method

the mathematics model of pattern recognition is established

the experimental verification is carried out

the experimental effect is ideal.