Description:

libfprint is an open source software library designed to make it easy for
application developers to add support for consumer fingerprint readers to their
software.

Features:
* Written in C
* Licensed as LGPL-2.1
* Depends on libusb for USB communication and glib
* Primarily developed for linux, but should be fairly portable
* Offers a single API to application developers to access the entire range
of supported devices
* Supports imaging - downloading live fingerprint scans from the device
* Includes image processing/matching code
* Supports enrollment/verification - enrolling a print from a known user,
and then later comparing a live scan to the enrolled print