Fingerprint

The GBS Fingerprint SDK is a fingerprint recognition library that comes packaged with a Software Development Kit (SDK), allowing you to integrate biometrics in a wide range of applications. Thanks to its support for several programming languages, code samples, and its documentation, you’ll start developing your application in a matter of minutes.

Installing the SDK

Licensing

The GBS Fingerprint SDK requires a software license to work correctly.

It is distributed with a trial license valid for 90 days*. After this period a license must be purchased by sending an email to [email protected] and must be installed in C:\ProgramData\Griaule.

For questions, please contact the Griaule Biometrics support sending an email to [email protected].

Installing

You must have one of the following versions of the SDK to perform the install. Verify if the version you have is compatible with your OS.

  • GBS Fingerprint SDK (x86-64)

  • GBS Fingerprint SDK (x86)

  • GBS Fingerprint SDK (Linux)

To install the SDK, double-click on the file and follow the on-screen instructions.

Folder Overview

Directory
Description

bin

Contains all the files needed by the GBS Fingerprint SDK library. This folder mainly contains DLLs.

doc

The Fingerprint SDK documentation files.

inc

Import files for some of the supported languages (DLL only).

lib

Libraries to access the GBS Fingerprint SDK in your C++ and C++.NET applications.

samples

Contains the samples source codes and binaries.

Operating Systems and Fingerprint Reader devices supported

Once the GBS Fingerprint SDK is installed the supported devices are also installed.

The following table specifies which models are supported according to the Operating System.

Operating Sysem Architecture
Win 10 64 Bits
Win 10 32 Bits
Win 8.1 64 Bits
Win 8.1 32 Bits
Win 8 64 Bits
Win 8 32 Bits
Win 7 64 Bits
Win 7 32 Bits

Cogent Cs500e

Crossmatch EF200 / Watson

Crossmatch LSCAN Guardian

Crossmatch Verifier 320 LC

Digent Izzix FD1000

Digital Persona U.are.U 4000

Digital Persona U.are.U 4500

Digital Persona U.are.U 5100

Futronic FS52

Futronic FS80

Futronic FS80H

Futronic FS81H

Futronic FS88

Futronic FS88H

Greenbit Multiscan 527

Lumidigm M301

Lumidigm V302

Lumidigm V311

Lumidigm V371

IDTech Biomag IDT-4012-DP

IDTech Biomag IDT-4033-NG

IB Sherlock

Integrated Biometrics Watson Mini

IB Kojak

Nitgen eNBioScan-D

Nitgen Hamster DX

Nitgen Hamster II

Nitgen Hamster II DX / III

Secugen Hamster IV

Secugen Hamster Plus

Secugen Hamster Pro 20

Suprema BioMini

Suprema BioMini Plus

Suprema BioMini Slim

Suprema RealScan-D

Suprema RealScan-G10

Suprema SFU-S20

TechMag Biopass

UPEK Eikon

UPEK Eikon Touch

Virdi FOH02

Virdi FOH04

Zvetco Verifi P5000

Zvetco Verifi P6000-B

Reader
Libraries

CrossMatch V320

GBSFingerprintCapPluginCrossMatch320.dll LScanEssentials.dll QtCore4.dll QtGui4.dll QtNetwork4.dll QtWebKit4.dll

Other CrossMatch

GBSFingerprintCapPluginCrossMatchP.dll GBSFingerprintCapPluginCrossMatch300.dll intl.dll libglib-2.0-0.dll USB4XX.dll

Digent

GBSFingerprintCapPluginDigent.dll FingerAPI22Ex.dll IZZIX20.dll TCI.dll

Futronic FS

GBSFingerprintCapPluginFutronicFS50.dll ftrScanAPI.dll

Other Futronic

GBSFingerprintCapPluginFutronic.dll ftrScanAPI.dll

Nitgen Hamster

GBSFingerprintCapPluginHams.dll NBioBSP.dll

Nitgen eNBioScan-D

GBSFingerprintCapPluginNitgenD.dll eNBioScan-D NBioScan.dll

Nitgen eNBioScan-F

GBSFingerprintCapPluginNitgenF.dll eNBioScan-F NBioBSP.dll

Integrated Biometrics Watson Mini

GBSFingerprintCapPluginIB.dll IBScanUltimate.dll

Lumidigm

GBSFingerprintCapPluginLumi.dll LumiAPI.dll LumiCore.dll LumiInOpAPI.dll plugin/AlgoDvc.dll plugin/IEngine_Plus.dll plugin/MercuryDvc.dll plugin/PreProcV31_INT16.dll plugin/SDvc.dll plugin/VenusDvc.dll

Suprema RealScan-D

GBSFingerprintCapPluginRealD.dll RS_SDK.dll

Other Suprema

GBSFingerprintCapPluginSuprema.dll UFLicense.dat UFScanner.dll

UPEK TouchChip

GBSFingerprintCapPluginUpek.dll bsapi.dll TCI.dll

Virdi FOH02

GBSFingerprintCapPluginVirdi2.dll UCBioBSP.dll VHMLib.dll

If your fingerprint reader is not listed in the table above and for further information, please contact us by email [email protected].

Programming Language Support

GBS Fingerprint SDK supports multiple programming languages, including Java, C++ and C#/.NET.

Features

Technical Characteristics

Capture:

  • Detects fingerprint readers plug/unplug;

  • Automatic finger detection;

  • Supports BMP files for fingerprint image saving/loading;

  • Maximum image size of 1280 x 1280 pixels;

  • Minimum image size of 50 x 50 pixels;

  • Maximum resolution of 1000 DPI;

  • Minimum resolution of 125 DPI;

Extraction:

  • Average extraction time of 100ms;

    Images of 300 x 300 pixels. Machine: Pentium4 2.8GHz, 512MB RAM.

  • Maximum image size of 500 x 500 pixels;

    Larger images are cropped.

  • Minimum image size of 50 x 50 pixels;

  • Average template size of 400 bytes;

Matching:

The Identification one-to-many is not performed by the GBS Fingerprint SDK.

  • Verification speed: up to 100/s.

    Images of 100 x 100 pixels. Machine: Pentium4 2.8GHz, 512MB RAM.

Threshold and Rotation Tolerance

The verification function in Fingerprint SDK library are governed by two important parameters: threshold and rotation tolerance.

The threshold is the minimum score needed to state that two fingerprints do match. The default value is 20 for the verification process, ensuring a 1% FRR.

The rotation tolerance defines the maximum acceptable angle variation (in degrees) between two fingerprints being compared that will result in a match. This value is valid in both clockwise and counterclockwise directions, so the maximum value that can be set is 180. The default value is -1.

What’s New on Fingerprint SDK

  • Added AFIS (Automatic Fingerprint Identification System) functionality: patterns are identified by software in fingerprint images and are used for comparison with another fingerprint image patterns to determine if they came from the same finger and ultimately, from the same person.

  • Added converter to WSQ functionality. The WSQ is the best image format for fingerprints. It reaches a great compression with high image quality.

  • Image formats supported when converting to WSQ: BMP, JPEG, JPEG 2000, TIFF, GIF and PNG.

  • Added support to more Fingerprint Readers;

  • Added support to Windows 7, 8 and 8.1 32-bit and 64-bit.

  • Fixed some bugs from the Fingerprint SDK 2009;

  • Dropped the concept of Context;

  • Dropped the editions IDENTIFICATION and VERIFICATION;

  • Does not perform multi-thread operations such as identification one-to-many;

  • Performs fingerprint extraction and verification (matching one-to-one).

How to migrate from the Fingerprint SDK 2009 to the new GBS Fingerprint SDK

This section highlights the main differences introduced when comparing the new Fingerprint SDK and the Fingerprint SDK 2009.

The GBS Fingerprint SDK

In the Fingerprint SDK 2009, a MatchingContext object is where the biometric operations (fingerprint minutiae extraction and fingerprint matching) occur. All methods in a MatchingContext object are synchronized, thus to execute N biometric operations at the same time, N MatchingContext objects must be created.

In the new Fingerprint SDK, the Matching Context is not applicable anymore. The application continues to be thread-safe, but only single-threaded operations are performed at a time. For multi-thread operations, such as Identification (one-to-many), the GBS Server is needed. For further information regarding this software of the Griaule Biometric Suite, please contact the Griaule Biometrics support ([email protected]).

New API: discontinued and new methods

The following tables match the discontinued methods of the previous softwares (Fingerprint SDK 2009, AFIS 2.0 and WSQ 1.2) with the new ones that replace them, if applicable. The value NA indicates that the method’s functionality has been discontinued in the current release of the SDK.

Fingerprint 2009
Afis
WSQ
GBS Fingerprint

GrInitialize

GriauleAfisInitialize

GrInitialize

GrCapInitialize

GriauleAfisCapInitialize

GrCapInitialize

GrFinalize

GriauleAfisFinalize

GrFinalize

GrCapFinalize

GriauleAfisCapFinalize

GrCapFinalize

GrExtract

GriauleAfisExtract

NA

GrExtractEx

GriauleAfisExtractEx

GrExtract

GrConvertTemplate

GriauleAfisConvertTemplate

GrConvertTemplate

GrCreateContext

GriauleAfisCreateContex

NA

GrDestroyContext

GriauleAfisDestroyContext

NA

GrVerify

GriauleAfisVerify

GrVerify

GrSetVerifyParameters

GriauleAfisSetVerifyParameters

GrSetVerifyParameters

GrGetVerifyParameters

GriauleAfisGetVerifyParameters

GrGetVerifyParameters

GrIdentify

GriauleAfisIdentify

NA

GrIdentifyPrepare

GriauleAfisIdentifyPrepare

NA

GrSetIdentifyParameters

GriauleAfisSetIdentifyParameters

NA

GrGetIdentifyParameters

GriauleAfisGetIdentifyParameters

NA

GrCapStartCapture

GriauleAfisCapStartCapture

GrCapStartCapture

GrCapStopCapture

GriauleAfisCapStopCapture

GrCapStopCapture

GriauleAfisCapCapture

NA

GriauleAfisGetProcessedImage

NA

GriauleAfisGetTemplate

NA

GriauleAfisGetTemplateEx

NA

GriauleAfisSetTemplate

NA

GriauleAfisGetTemplateInfo

NA

GriauleAfisGetMinutiaInfo

NA

GriauleAfisGetSegmentInfo

NA

GriauleAfisAddMinutia

NA

GriauleAfisRemoveMinutia

NA

GriauleAfisGetNearestMinutia

NA

GriauleAfisGetNearestSegment

NA

GriauleAfisRecalculateSegment

NA

GriauleAfisSetPatternClassification

NA

GriauleAfisGetPatternClassification

NA

GriauleAfisGetMatchInfo

NA

GriauleAfisGetMatchMinutia

NA

GriauleAfisGetMatchSegment

NA

GriauleAfisRawImageToHandle

NA

GriauleAfisSaveRawImageToFile

NA

GriauleAfisLoadImageFromFile

NA

GriauleAfisDisplay

NA

GriauleAfisSegmentTwoFingers

GrSegmentNFingers

GriauleAfisSegmentFourFingers

GrSegmentNFingers

GriauleAfisFreeBlockData

GriauleAfisSetCaptureParameters

GrSetCaptureParameters

GriauleAfisGetCaptureParameters

GrGetCaptureParameters

GriauleAfisSetCaptureThresholds

GrSetCaptureThresholds

GriauleAfisGetCaptureThresholds

GrGetCaptureThresholds

GriauleAfisSetDisplayColors

NA

GriauleAfisGetDisplayColors

NA

GriauleAfisSetExtractParameters

NA

GriauleAfisGetExtractParameters

NA

GriauleAfisSetPostMatchParameters

NA

GriauleAfisGetPostMatchParameters

NA

GriauleAfisGetVersion

NA

GriauleAfisInitializeStandard

NA

GriauleAfisAddFingerprintToStandard

NA

GriauleAfisExportStandard

NA

GriauleAfisAddicaoToStandard

NA

GriauleAfisAddExceptionToStandard

NA

GriauleAfisAddBioDataToStandard

NA

GrCapAddPlugin

NA

GrCapRawImageToHandle

NA

GrCapSaveRawImageToFile

NA

GrCapLoadImageFromFile

NA

GrBiometricDisplay

GrBiometricDisplay

GrBiometricDisplayRaw

NA

GrSetBiometricDisplayColors

GrSetBiometricDisplayColors

GrGetGrFingerVersion

GrGetVersion

GrSetLicenseFolder

GrSetLicenseFolder

GrInstallLicense

GrInstallLicense

GrGetLicensePath

NA

GrStartEnroll

GrStartConsolidation

GrEnroll

GrConsolidate

GrEncodeBase64

GrExtract

GrDecodeBase64

GrExtract

GrisBase64Encoding

GrExtract

griaulewsq_raw2wsq

GrConvertImage

griaulewsq_wsq2raw

GrConvertImage

griaulewsq_free

GrConvertImage

griaulewsq_loadFromFile

GrLoadFromFile

GrSaveToFile

griaulewsq_getVersion

GrConvertImage

griaulewsq_saveToBMPFile

GrConvertImage

griaulewsq_saveToJPEGFile

GrConvertImage

griaulewsq_saveToJPEG200OFile

GrConvertImage

griaulewsq_saveToGIFFile

GrConvertImage

griaulewsq_saveToTIFFFile

GrConvertImage

griaulewsq_iso197944_to_raw

GrConvertImage

griaulewsq_iso197944_to_raw_single

GrConvertImage

griaulewsq_raw_to_iso197944_single

GrConvertImage

griaulewsq_raw_to_iso197944

GrConvertImage

griaulewsq_saveToiso197944File_single

GrConvertImage

griaulewsq_saveToiso197944File

GrConvertImage

griaulewsq_saveToWSQFile

GrConvertImage

griaulewsq_saveToPNGFile

GrConvertImage

griaulewsq_setComment

GrConvertImage

griaulewsq_getComment

GrConvertImage

griaulewsq_setLicenseFolder

GrConvertImage

griaulewsq_requestAuthorization

GrConvertImage

griaulewsq_rawmageToHandle

GrConvertImage

griaulewsq_memleak_start

GrConvertImage

griaulewsq_memleak_chec

GrConvertImage

GrGetCaptureInfo

GrGetCaptureInfo

GrGetReaderInfo

GrGetReaderInfo

GrSetReaderInfo

GrSetReaderInfo

GrSetCrypt

NA

GrDecrypt

NA

Methods Signature Simplified: Gr_IMAGE and Gr_TEMPLATE

In the Fingerprint SDK 2009, several primitive types must be passed as parameters of the API functions in order to define an image or a template. In the GBS Fingerprint SDK, new classes define how Image and Template data must be defined. They encapsulate the necessary information and allow a clearer understanding of the API.

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