NIST Fingerprint Image Quality 2

NIST Fingerprint Image Quality (NFIQ) 2 is open source software that links image quality of optical and ink 500 PPI fingerprints to operational recognition performance. NFIQ 2 quality features are formally standardized as part of ISO/IEC 29794-4 and serve as the reference implementation of the standard. This information can be consulted in the following link: www.nist.gov/services-resources/software/nfiq-2