Luxand公司人脸识别的专业SDK开发包

人脸识别

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Luxand, Inc.

http://www.luxand.com

Luxand FaceSDK 1.7

Face Detection and Recognition Library

Developer’s Guide

Table of Contents

Introduction .............................................................................................................................. 4

Requirements ............................................................................................................................ 4

Installation ................................................................................................................................ 4

Directory Structure .................................................................................................................. 4

Redistributables ........................................................................................................................ 5

Technical Specifications ........................................................................................................... 5

Face Detection .................................................................................................................................................... 5

Facial Feature Detection ..................................................................................................................................... 6

Face Matching .................................................................................................................................................... 6

Sample Applications ................................................................................................................. 6

Using Luxand FaceSDK........................................................................................................... 6

Library Activation .................................................................................................................... 7

FSDK_GetHardware_ID Function ..................................................................................................................... 7

FSDK_ActivateLibrary Function ....................................................................................................................... 7

FSDK_GetLicenseInfo Function ........................................................................................................................ 7

Initialization .............................................................................................................................. 8

FSDK_Initialize Function .................................................................................................................................. 8

FSDK_Finalize Function .................................................................................................................................... 8

Working With Images .............................................................................................................. 8

FSDK_LoadImageFromFile Function................................................................................................................ 9

FSDK_LoadImageFromHBitmap Function ....................................................................................................... 9

FSDK_SaveImageToFile Function .................................................................................................................... 9

FSDK_SetJpegCompressionQuality ................................................................................................................ 10

FSDK_SaveImageToHBitmap Function .......................................................................................................... 10

FSDK_FreeImage Function ............................................................................................................................. 11

Face Detection ......................................................................................................................... 11

Data types ......................................................................................................................................................... 11

FSDK_DetectFace Function............................................................................................................................. 12

FSDK_DetectMultipleFaces Function ............................................................................................................. 12

FSDK_SetFaceDetectionParameters Function ................................................................................................. 13

FSDK_SetFaceDetectionThreshold Function .................................................................................................. 14

Facial Feature Detection ........................................................................................................ 15

FSDK_DetectFacialFeatures Function ............................................................................................................. 15

FSDK_DetectFacialFeaturesInRegion Function .............................................................................................. 16

Face Matching ........................................................................................................................ 17

FSDK_GetFaceTemplate ................................................................................................................................. 17

FSDK_GetFaceTemplateInRegion................................................................................................................... 18

FSDK_GetFaceTemplateUsingFeatures .......................................................................................................... 19

FSDK_MatchFaces .......................................................................................................................................... 19

FSDK_GetMatchingThresholdAtFAR ............................................................................................................. 20

FSDK_GetMatchingThresholdAtFRR ............................................................................................................. 21

Face Image Extraction ........................................................................................................... 21

FSDK_ExtractFaceImage Function.................................................................................................................. 21

Obsolete Functions ................................................................................................................. 22

Introduction

Luxand FaceSDK is a face detection and recognition library that can easily be integrated into

a customer's applications. FaceSDK offers the API (Application Programming Interface) to

detect a face and facial features, and to match faces (1:1 and 1:N matching is supported).

Following face detection, the SDK provides the coordinates of 40 facial feature points – such

as eyes, eye corners, eyebrows, mouth corners, nose tip – for further processing.

Luxand FaceSDK is supplied as a DLL (a Win32 Dynamic Link Library), and can be used in

the number of compilers on the Win32 platform. FaceSDK contains interface header files and

sample applications for Microsoft Visual C++ 6.0/7.0/2005/2008, Microsoft .NET and

Borland Delphi 6.0/7.0.

Requirements

The FaceSDK library has the following system requirements:

 Windows 98, Me, 2000, NT, XP

 128 MB RAM

 100 MB free disk space

Installation

To install Luxand FaceSDK, run the installation file Luxand_FaceSDK_Setup.exe and

follow the instructions. FaceSDK is installed to the C:\Program

Files\Luxand\FaceSDK directory by default. FaceSDK is a copy-protected library, and

must be activated with a license key before each use (see the Library Activation chapter).

To access the FaceSDK library functions, you need to use FaceSDK.dll in your applications.

Please note that FaceSDK uses FaceSDKc.dll, located in the Bin\ directory. This DLL file

should be also accessible from your application. Usually, it is recommended to keep

FaceSDK.dll and FaceSDKc.dll in the working directory of your application or in the

directory specified in the PATH environment variable.

You need to include interface header files into your application project in order to use

FaceSDK.dll. For Microsoft Visual C++ applications, you need to include the header file

(Include\MSVC\LuxandFaceSDK.h) and the library file (Lib\FaceSDK.lib). For Microsoft

.NET applications, use the .NET wrapper (Include\.NET). For Delphi applications, use the

Include\Delphi\LuxandFaceSDK.pas unit in your project.

Directory Structure

The FaceSDK directory contains the following directories and files:

Bin\

FaceSDK binary files

FaceSDK.dll, FaceSDKc.dll

FaceSDK library (should be

redistributed with the

application)

Demo\

Face Recognition Demo application

Include\

Header files

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annwa

2015-09-17

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