NIST
Special Database 4
NIST
8-Bit Gray Scale Images
of Fingerprint Image Groups (FIGS)
A sample of
the data contained in this database is available via anonymous ftp
at sequoyah.ncsl.nist.gov
in the files prints4.txt
and prints4.tar.Z
[10,528K].
The NIST database
of fingerprint images contains 2000 8-bit gray scale fingerprint image
pairs. Each image is 512-by-512 pixels with 32 rows of white space
at the bottom and classified using one of the five following classes:
A=Arch,
L=Left Loop, R=Right Loop, T=Tented Arch, W=Whorl.
The database
is evenly distributed over each of the five classifications with 400
fingerprint pairs from each class.
The images are
compressed using a non-standard implementation of the JPEG lossless
compression algorithm and require approximately 636 megabytes of storage
compressed and 1.1 gigabytes uncompressed (1.6:1 compression ratio).
The database
also includes format documentation and example software.
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.
The database
is a valuable tool for evaluating fingerprint systems on a statistical
sample of fingerprints which is evenly distributed over the five major
classifications.
System
Requirements: CD-ROM drive with software to read ISO-9660
format and the ability to compile SUN C source code.
Price:
$90.00. Special pricing for multiple copies available. Call
for details.
You may browse
the Users' Guide to
see how this database works.
To order online,
click here
Spec.
DB 4. NIST 8-Bit Gray Scale Images of Fingerprint Image Groups (FIGS)
For
more information on Special Database 4 please contact:
- Standard Reference
Data Program
National Institute of Standards and Technology
100 Bureau Dr., Stop 2310
Gaithersburg, MD 20899-2310
(301) 975-2008
(VOICE) / (301) 926-0416 (FAX)
Contact Us
The
scientific contact for this database is:
- Craig Watson
Advanced Systems Division
National Institute of Standards and Technology
100 Bureau Drive, Stop 8940
Building 225, Room A216
Gaithersburg, MD 20899-8940
(301) 975-4402
craig.watson@nist.gov
Key words: Arch,
classification, fingerprint, grayscale, left loop, lossless compression,
matching, NIST, pairs, right loop, software recognition, tented arch,
whorl.
