Skip to main content

NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

NIST Special Database 4. NIST 8-Bit Gray Scale Images of Fingerprint Image Groups

Published

Author(s)

Craig I. Watson

Abstract

This database is a valuable tool for evaluating fingerprint systems on a statistical sample of fingerprints which is evenly distributed over the five major classifications.NIST Special Database 4 has the following features:- 2000 8-bit gray scale fingerprint image pairs including classifications;- 400 fingerprint pairs from each of the five classifications - Arch, Left and Right Loops, Tented Arch, Whirl)- each of the fingerprint pairs are two completely different rollings of the same fingerprint- 19.7 pixels per millimeter resolution- image format documentation and example software.Suitable for automated fingerprint classification research, the database can be used for:- algorithm development- system training and testing.
Citation
World Wide Web-Internet and Web Information Systems

Keywords

arch, classification, fingerprint, grayscale, left loop, lossless compression, pairs, right loop, whorl

Citation

Watson, C. (2008), NIST Special Database 4. NIST 8-Bit Gray Scale Images of Fingerprint Image Groups, World Wide Web-Internet and Web Information Systems (Accessed October 9, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created October 16, 2008
Was this page helpful?