FOREIGN OBJECT ASSESSMENT DEVICE, FOREIGN OBJECT ASSESSMENT METHOD, AND FOREIGN OBJECT ASSESSMENT PROGRAM

摘要

Disclosed is a foreign object assessment device for improving accuracy of fingerprint authentication. The disclosed foreign object assessment device is provided with an image acquisition unit (31) for acquiring an image in which an object to be authenticated to be an object of fingerprint authentication has been captured; a region partitioning unit (33) for partitioning an image acquired by the image acquisition unit (31) into regions differing in color from one another using predetermined assessment criteria when assessing differences in the color; and a foreign object assessment unit (34) for assessing whether or not a foreign object is included in the object to be authenticated using colors and/or areas of the regions partitioned by the region partitioning unit (33).