Fingerprint image judgment apparatus and program

摘要

The present invention provides a fingerprint image judgment apparatus capable of judging whether or not fingerprint image data has been correctly read when a CPU having a small utilizable memory space is used. The fingerprint image judgment apparatus 10 of the present invention includes: a formation judgment unit for judging whether or not pixel values form ridges in an X-axis direction; a storage unit for sequentially storing pixel values of the fingerprint image data in a first memory 141, the fingerprint image data being read by a fingerprint sensor 15 along a Y-axis direction; a first count unit for counting ridges in the Y-axis direction based on the pixel values stored in the first memory 141; a second count unit for counting the number of ridges in the X-axis direction based on a judgment result h_flg [i] stored in a second memory 142 and the pixel values stored in the first memory; and a correctibility judgment unit for judging whether or not the fingerprint image data has been correctly read by the fingerprint sensor based on the number of ridges counted by the first and second count units.