Automatic Lossless Extraction of Fingerprint Images Based on Ten-Finger-Print-Card
Cui Yulan (Foreign Language Normal College of Taiyuan University,Taiyuan,030012,China)
The article mainly elaborates the realization of automatic extraction of the fingerprint image without any damage. At first, it discusses how to make use of the structural feature of the frame on the card, how to divide the original image into ten parts and make every part contain one fingerprint. Then, analyzes further the feature of gray degree distribution and its area of every part. After referring to and improving the calculation method of obscurification, double valuing, obtaining maximum coherence area and finger print center, it adds the calculation method of object expansion, post-treatment on contained overlapping frame lines.
【CateGory Index】： TP391.4