//获取相似度
private float recogitionAndFacePairMatching(byte[] firstFeature, byte[] secondFeature)
{
float similar = 0f;
ArcSoft_FACE_API.FSDK_FACE_RECOGNITION.AFR_FSDK_FACEMODEL firstFaceModels = new ArcSoft_FACE_API.FSDK_FACE_RECOGNITION.AFR_FSDK_FACEMODEL();
IntPtr firstFeaturePtr = Marshal.AllocHGlobal(firstFeature.Length);
Marshal.Copy(firstFeature, 0, firstFeaturePtr, firstFeature.Length);
firstFaceModels.lFeatureSize = firstFeature.Length;
firstFaceModels.pbFeature = firstFeaturePtr;
IntPtr firstPtr = Marshal.AllocHGlobal(Marshal.SizeOf(firstFaceModels));
Marshal.StructureToPtr(firstFaceModels, firstPtr, false);
ArcSoft_FACE_API.FSDK_FACE_RECOGNITION.AFR_FSDK_FACEMODEL secondFaceModels = new ArcSoft_FACE_API.FSDK_FACE_RECOGNITION.AFR_FSDK_FACEMODEL();
IntPtr secondFeaturePtr = Marshal.AllocHGlobal(secondFeature.Length);
Marshal.Copy(secondFeature, 0, secondFeaturePtr, secondFeature.Length);
secondFaceModels.lFeatureSize = secondFeature.Length;
secondFaceModels.pbFeature = secondFeaturePtr;
IntPtr secondPtr = Marshal.AllocHGlobal(Marshal.SizeOf(secondFaceModels));
Marshal.StructureToPtr(secondFaceModels, secondPtr, false);
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
int result = ArcSoft_FACE_API.FSDK_FACE_RECOGNITION.AFR_FSDK_FacePairMatching(ArcSoft_FACE_API.FSDK_FACE_SHARE.recogitionEngine, firstPtr, secondPtr, ref similar);
stopwatch.Stop();
//Console.WriteLine("相似度:" + similar.ToString() + " 耗时:" + stopwatch.ElapsedMilliseconds.ToString() + "ms");
firstFaceModels = new ArcSoft_FACE_API.FSDK_FACE_RECOGNITION.AFR_FSDK_FACEMODEL();
secondFaceModels = new ArcSoft_FACE_API.FSDK_FACE_RECOGNITION.AFR_FSDK_FACEMODEL();
Marshal.FreeHGlobal(firstFeaturePtr);
Marshal.FreeHGlobal(secondFeaturePtr);
Marshal.FreeHGlobal(firstPtr);
Marshal.FreeHGlobal(secondPtr);
return(similar);
}
//检测人脸、提取特征
private byte[] detectAndExtractFeature(Image imageParam, PictureBox picbox)
{
Byte[] feature = null;
try
{
Console.WriteLine();
Console.WriteLine("############### Face Detect Start #########################");
int width = 0;
int height = 0;
int pitch = 0;
Bitmap bitmap = new Bitmap(imageParam);
byte[] imageData = ArcSoft_FACE_API.FSDK_FACE_SHARE.ReadBmpToByte(bitmap, ref width, ref height, ref pitch);
IntPtr imageDataPtr = Marshal.AllocHGlobal(imageData.Length);
Marshal.Copy(imageData, 0, imageDataPtr, imageData.Length);
//Marshal.StructureToPtr(imageData, imageDataPtr, false);
ArcSoft_FACE_API.FSDK_FACE_SHARE.ASVLOFFSCREEN offInput = new ArcSoft_FACE_API.FSDK_FACE_SHARE.ASVLOFFSCREEN();
offInput.u32PixelArrayFormat = 513;
offInput.ppu8Plane = new IntPtr[4];
offInput.ppu8Plane[0] = imageDataPtr;
offInput.i32Width = width;
offInput.i32Height = height;
offInput.pi32Pitch = new int[4];
offInput.pi32Pitch[0] = pitch;
IntPtr offInputPtr = Marshal.AllocHGlobal(Marshal.SizeOf(offInput));
Marshal.StructureToPtr(offInput, offInputPtr, false);
ArcSoft_FACE_API.FSDK_FACE_DETECTION.AFD_FSDK_FACERES faceRes = new ArcSoft_FACE_API.FSDK_FACE_DETECTION.AFD_FSDK_FACERES();
IntPtr faceResPtr = Marshal.AllocHGlobal(Marshal.SizeOf(faceRes));
Console.WriteLine("StartTime:{0}", DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss.ffff"));
Stopwatch watchTime = new Stopwatch();
watchTime.Start();
//人脸检测
int detectResult = ArcSoft_FACE_API.FSDK_FACE_DETECTION.AFD_FSDK_StillImageFaceDetection(
ArcSoft_FACE_API.FSDK_FACE_SHARE.detectEngine,
offInputPtr,
ref faceResPtr
);
watchTime.Stop();
Console.WriteLine(String.Format("检测耗时:{0}ms", watchTime.ElapsedMilliseconds));
/*
#region 原始方法1
* long longPtr = faceRes.rcFace.ToInt64();
* for (int i = 0; i < rectArr.Length; i++)
* {
* IntPtr rectPtr = new IntPtr(longPtr);
* var a = Marshal.PtrToStructure(rectPtr, typeof(ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT));
* var b = (ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT)a;
* rectArr[i] = b;
* longPtr += Marshal.SizeOf(typeof(ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT));
* }
* imageParam = ArcSoft_FACE_API.FSDK_FACE_SHARE.DrawRectangleInPicture2(imageParam, rectArr, Color.Red, 2, DashStyle.Dash);
* if (rectArr.Length > 0)
* {
* ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT rect = rectArr[0];
* Image imgResult = ArcSoft_FACE_API.FSDK_FACE_SHARE.CutFace((Bitmap)imageParam, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
* picbox.Image = imgResult;
* }
* else
* {
* picbox.Image = null;
* }
#endregion
*/
/*
#region 原始方法2
* faceRes = (ArcSoft_FACE_API.FSDK_FACE_DETECTION.AFD_FSDK_FACERES)Marshal.PtrToStructure(faceResPtr, typeof(ArcSoft_FACE_API.FSDK_FACE_DETECTION.AFD_FSDK_FACERES));
* Console.WriteLine(" Face Count: " + faceRes.nFace);
* for (int i = 0; i < faceRes.nFace; i++)
* {
* ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT rect = (ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT)Marshal.PtrToStructure(faceRes.rcFace + Marshal.SizeOf(typeof(ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT)) * i, typeof(ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT));
* int orient = (int)Marshal.PtrToStructure(faceRes.lfaceOrient + Marshal.SizeOf(typeof(int)) * i, typeof(int));
* if (i == 0)
* {
* Image image = ArcSoft_FACE_API.FSDK_FACE_SHARE.CutFace(bitmap, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
* picbox.Image = image;
* }
* Console.WriteLine("left:" + rect.left + "\n" + "top:" + rect.top + "\n" + "right:" + rect.right + "\n" + "bottom:" + rect.bottom + "\n" + "orient:" + orient);
*
* }
#endregion
*/
#region 自己修改
faceRes = (ArcSoft_FACE_API.FSDK_FACE_DETECTION.AFD_FSDK_FACERES)Marshal.PtrToStructure(faceResPtr, typeof(ArcSoft_FACE_API.FSDK_FACE_DETECTION.AFD_FSDK_FACERES));
ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT[] rectArr = new ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT[faceRes.nFace];
for (int j = 0; j < rectArr.Length; j++)
{
rectArr[j] = (ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT)Marshal.PtrToStructure(faceRes.rcFace + Marshal.SizeOf(typeof(ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT)) * j, typeof(ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT));
}
imageParam = ArcSoft_FACE_API.FSDK_FACE_SHARE.DrawRectangleInPicture2(imageParam, rectArr, Color.Red, 3, DashStyle.Dash);
if (rectArr.Length > 0)
{
for (int j = 0; j < rectArr.Length; j++)
{
ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT rect = rectArr[0];
Image imgResult = ArcSoft_FACE_API.FSDK_FACE_SHARE.CutFace((Bitmap)imageParam, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
picbox.Image = imgResult;
}
}
else
{
picbox.Image = null;
}
#endregion
Console.WriteLine(" EndTime:{0}", DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss.ffff"));
Console.WriteLine("############### Face Detect End #########################");
if (faceRes.nFace > 0)
{
Console.WriteLine("############### Face Recognition Start #########################");
ArcSoft_FACE_API.FSDK_FACE_RECOGNITION.AFR_FSDK_FACEINPUT faceResult = new ArcSoft_FACE_API.FSDK_FACE_RECOGNITION.AFR_FSDK_FACEINPUT();
int orient = (int)Marshal.PtrToStructure(faceRes.lfaceOrient, typeof(int));
faceResult.lfaceOrient = orient;
faceResult.rcFace = new ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT();
ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT rect = (ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT)Marshal.PtrToStructure(faceRes.rcFace, typeof(ArcSoft_FACE_API.FSDK_FACE_SHARE.MRECT));
faceResult.rcFace = rect;
IntPtr faceResultPtr = Marshal.AllocHGlobal(Marshal.SizeOf(faceResult));
Marshal.StructureToPtr(faceResult, faceResultPtr, false);
ArcSoft_FACE_API.FSDK_FACE_RECOGNITION.AFR_FSDK_FACEMODEL localFaceModels = new ArcSoft_FACE_API.FSDK_FACE_RECOGNITION.AFR_FSDK_FACEMODEL();
IntPtr localFaceModelsPtr = Marshal.AllocHGlobal(Marshal.SizeOf(localFaceModels));
//Marshal.StructureToPtr(localFaceModels, localFaceModelsPtr, false);
watchTime.Start();
int extractResult = ArcSoft_FACE_API.FSDK_FACE_RECOGNITION.AFR_FSDK_ExtractFRFeature(ArcSoft_FACE_API.FSDK_FACE_SHARE.recogitionEngine, offInputPtr, faceResultPtr, localFaceModelsPtr);
Marshal.FreeHGlobal(faceResultPtr);
Marshal.FreeHGlobal(offInputPtr);
watchTime.Stop();
Console.WriteLine(String.Format("抽取特征耗时:{0}ms", watchTime.ElapsedMilliseconds));
localFaceModels = (ArcSoft_FACE_API.FSDK_FACE_RECOGNITION.AFR_FSDK_FACEMODEL)Marshal.PtrToStructure(localFaceModelsPtr, typeof(ArcSoft_FACE_API.FSDK_FACE_RECOGNITION.AFR_FSDK_FACEMODEL));
Marshal.FreeHGlobal(localFaceModelsPtr);
Console.WriteLine("" + localFaceModels.lFeatureSize);
feature = new byte[localFaceModels.lFeatureSize];
Marshal.Copy(localFaceModels.pbFeature, feature, 0, localFaceModels.lFeatureSize);
localFaceModels = new ArcSoft_FACE_API.FSDK_FACE_RECOGNITION.AFR_FSDK_FACEMODEL();
Console.WriteLine("############### Face Recognition End #########################");
}
bitmap.Dispose();
imageData = null;
Marshal.FreeHGlobal(imageDataPtr);
offInput = new ArcSoft_FACE_API.FSDK_FACE_SHARE.ASVLOFFSCREEN();
faceRes = new ArcSoft_FACE_API.FSDK_FACE_DETECTION.AFD_FSDK_FACERES();
}
catch (Exception e)
{
Console.WriteLine(e.Message + e.StackTrace);
}
return(feature);
}
