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.
You
may browse the Users'
Guide to see how this database works.
Please
click here to view the PDF version of Users'
Guide.
If you are
having problems with the Online Purchase or Fax/Mail Order Link.
Price:
$90.00
Special
pricing for multiple copies available. Call for details.
Effectively immediately, there will be a minimum $30.00 shipping charge for all international shipments of databases via Fed. Ex. Customer will be responsible for their own duties, tax, and VAT. Contact 301 975 2008 or data@nist.gov if you have questions.
For
more information on Special Database 4 please contact:
- Standard
Reference Data Program
National Institute of Standards and Technology
100 Bureau Dr., Stop 2300
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.
