/// <summary>
/// 人脸识别特征码提取
/// </summary>
/// <param name="image"></param>
/// <param name="rect"></param>
/// <param name="orient"></param>
private byte[] RecognizeFace(Bitmap image, MRECT rect, int orient)
{
IntPtr offInputPtr = ArcFaceDetection.MakeImageInput_ASVLOFFSCREEN(image);
AFR_FSDK_FACEINPUT faceInput = new AFR_FSDK_FACEINPUT();
faceInput.lOrient = orient;
faceInput.rcFace = rect;
//入参
IntPtr faceInputPtr = Marshal.AllocHGlobal(Marshal.SizeOf(faceInput));
Marshal.StructureToPtr(faceInput, faceInputPtr, false);
AFR_FSDK_FACEMODEL faceModel = new AFR_FSDK_FACEMODEL();
IntPtr faceModelPtr = Marshal.AllocHGlobal(Marshal.SizeOf(faceModel));
int ret = AFRFunction.AFR_FSDK_ExtractFRFeature(this.faceRecognition.rEngine, offInputPtr, faceInputPtr, faceModelPtr);
if (ret == 0)
{
faceModel = (AFR_FSDK_FACEMODEL)Marshal.PtrToStructure(faceModelPtr, typeof(AFR_FSDK_FACEMODEL));
Marshal.FreeHGlobal(faceModelPtr);
byte[] featureContent = new byte[faceModel.lFeatureSize];
Marshal.Copy(faceModel.pbFeature, featureContent, 0, faceModel.lFeatureSize);
return(featureContent);
}
return(null);
}
protected override void OnShown(EventArgs e)
{
base.OnShown(e);
string appID = ConfigurationManager.AppSettings["appid"];
string afdKey = ConfigurationManager.AppSettings["fdKey"];
string afrKey = ConfigurationManager.AppSettings["frKey"];
//人脸检测初始化
faceDetection = new ArcFaceDetection(appID, afdKey);
this.detectState = faceDetection.InitFaceEngine() == 0;
//人脸识别初始化
faceRecognition = new ArcFaceRecognition(appID, afrKey);
this.recognizeState = faceRecognition.InitFaceEngine() == 0;
this.OnEngineStateChanged?.Invoke(this.detectState, this.recognizeState);
}
