Home » Do I need the fingerprint images? What is a template? What is the size of a template?
FAQ
Question: Do I need the fingerprint images? What is a template? What is the size of a template?
Answer:
The reader only captures a fingerprint image, which is processed by a software specially designed to extract some characteristic points, called minutiae. One regular fingerprint has about 50 minutiae. About 13 of them are needed to assure the identification.
When all the minutiae are extracted, they are put together. This is called a Template, the joining of all the extracted minutiae in a fingerprint. The identification is made by a triangulation process and geometrical relation between the minutiae only, not the entire image.
In the Fingerprint SDK, the templates usually have around 700 bytes.
