/// <summary>
/// 释放引擎Handler
/// </summary>
/// <returns></returns>
public static bool DisposeEngine()
{
if (hEngine != null)
{
try
{
ResultCode result = (ResultCode)ASFAPI.ASFUninitEngine(hEngine);
if (result == ResultCode.成功)
{
return(true);
}
else
{
throw new Exception(result.ToString());
}
}
catch (Exception ex)
{
throw ex;
}
finally
{
//Marshal.FreeHGlobal(hEngine);
}
}
return(true);
}
/// <summary>
/// 人脸比对
/// </summary>
/// <param name="data1">第一张人脸数据</param>
/// <param name="data2">第二张人脸数据</param>
/// <returns></returns>
public float Compare(byte[] data1, byte[] data2)
{
try
{
FaceFeature feature1 = new FaceFeature();
feature1.feature = Marshal.AllocHGlobal(data1.Length);
Marshal.Copy(data1, 0, feature1.feature, data1.Length);
feature1.featureSize = data1.Length;
IntPtr pLocalFeature1 = Marshal.AllocHGlobal(Marshal.SizeOf(feature1));
Marshal.StructureToPtr(feature1, pLocalFeature1, false);
FaceFeature feature2 = new FaceFeature();
feature2.feature = Marshal.AllocHGlobal(data2.Length);
Marshal.Copy(data2, 0, feature2.feature, data2.Length);
feature2.featureSize = data2.Length;
IntPtr pLocalFeature2 = Marshal.AllocHGlobal(Marshal.SizeOf(feature2));
Marshal.StructureToPtr(feature2, pLocalFeature2, false);
float similar = 0.0f;
ASFAPI.ASFFaceFeatureCompare(hEngine, pLocalFeature1, pLocalFeature2, out similar);
return(similar);
}
catch (Exception ex)
{
return(0.0f);
}
}
/// <summary>
/// 获取年龄信息
/// </summary>
/// <returns></returns>
public int GetAge()
{
var faceinfo = DetectFaces();
if (faceinfo.faceOrient == IntPtr.Zero || faceinfo.faceRect == IntPtr.Zero)
{
return(0);
}
var processResult = ASFAPI.ASFProcess(hEngine, bitmapImage.Width, bitmapImage.Height, bitmapImage.Format, bitmapImage.ImageData, faceinfo, (int)(EngineMode.年龄识别));
if (processResult != (int)ResultCode.成功)
{
return(0);
}
AgeInfo age = new AgeInfo();
var ageResult = ASFAPI.ASFGetAge(hEngine, ref age);
if (ageResult != (int)ResultCode.成功)
{
return(0);
}
int[] ageArray = new int[age.num];
Marshal.Copy(age.ageArray, ageArray, 0, ageArray.Length);
return(ageArray[0]);
}
/// <summary>
/// 获取年龄信息
/// </summary>
/// <returns></returns>
public int GetAge()
{
var faceinfo = DetectFaces();
ASFAPI.ASFProcess(hEngine, bitmapImage.Width, bitmapImage.Height, bitmapImage.Format, bitmapImage.ImageData, faceinfo, (int)(EngineMode.年龄识别));
AgeInfo age = new AgeInfo();
ASFAPI.ASFGetAge(hEngine, ref age);
int[] ageArray = new int[age.num];
Marshal.Copy(age.ageArray, ageArray, 0, ageArray.Length);
return(ageArray[0]);
}
/// <summary>
/// 获取人脸特征
/// </summary>
/// <returns></returns>
public byte[] getFaceFeature(Bitmap image)
{
BitmapImage bitmapImage = null;
var multiFaceInfo = DetectFaces(image, out bitmapImage);
if (multiFaceInfo.faceNum == 0 || multiFaceInfo.faceOrient == IntPtr.Zero || multiFaceInfo.faceRect == IntPtr.Zero)
{
return(null);
}
SingleFaceInfo info = new SingleFaceInfo();
Mrect mrect = new Mrect();
int[] orientArray = new int[multiFaceInfo.faceNum];
Marshal.Copy(multiFaceInfo.faceOrient, orientArray, 0, orientArray.Length);
info.faceOrient = orientArray[0];
byte[] byteArray = new byte[4 * 4];
Marshal.Copy(multiFaceInfo.faceRect, byteArray, 0, byteArray.Length);
int size = Marshal.SizeOf(mrect);
IntPtr buffer = Marshal.AllocHGlobal(size);
try
{
Marshal.Copy(byteArray, 0, buffer, size);
mrect = (Mrect)Marshal.PtrToStructure(buffer, typeof(Mrect));
}
finally
{
Marshal.FreeHGlobal(buffer);
}
info.faceRect = mrect;
FaceFeature feature = new FaceFeature();
IntPtr ptr1 = Marshal.AllocHGlobal(Marshal.SizeOf(info));
Marshal.StructureToPtr(info, ptr1, false);
var result = ASFAPI.ASFFaceFeatureExtract(hEngine, bitmapImage.Width, bitmapImage.Height, bitmapImage.Format, bitmapImage.ImageData, ptr1, ref feature);
Marshal.FreeHGlobal(ptr1);
byte[] data = null;
if (result == 0 && feature.featureSize > 0 && feature.feature != IntPtr.Zero)
{
data = new byte[1032];
Marshal.Copy(feature.feature, data, 0, 1032);
return(data);
}
else
{
return(null);
}
}
/// <summary>
/// 人脸比对
/// </summary>
/// <param name="data1">第一张人脸数据</param>
/// <param name="data2">第二张人脸数据</param>
/// <returns></returns>
public float Compare(byte[] data1, byte[] data2)
{
FaceFeature feature1 = new FaceFeature();
FaceFeature feature2 = new FaceFeature();
IntPtr ptr1 = Marshal.AllocHGlobal(data1.Length);
IntPtr ptr2 = Marshal.AllocHGlobal(data2.Length);
Marshal.Copy(data1, 0, ptr1, data1.Length);
Marshal.Copy(data2, 0, ptr2, data2.Length);
feature1.feature = ptr1;
feature1.featureSize = 1032;
feature2.feature = ptr2;
feature2.featureSize = 1032;
float similar = 0.0f;
ASFAPI.ASFFaceFeatureCompare(hEngine, feature1, feature2, ref similar);
return(similar);
}
/// <summary>
/// 获得引擎Handler
/// </summary>
/// <param name="mode">模式（图像/视频流）</param>
/// <param name="orientPriority">检测方向的优先级</param>
/// <param name="detectFaceScaleVal">数值化的最小人脸尺寸</param>
/// <returns></returns>
public static IntPtr GetEngineInstance(uint mode, DetectionOrientPriority orientPriority, int detectFaceScaleVal = 12)
{
hEngine = IntPtr.Zero;
try
{
ResultCode result = (ResultCode)ASFAPI.ASFInitEngine(mode, (int)orientPriority, detectFaceScaleVal, 50, (int)(EngineMode.人脸检测 | EngineMode.人脸识别 | EngineMode.性别识别 | EngineMode.年龄识别 | EngineMode.角度识别), ref hEngine);
if (result == ResultCode.成功)
{
return(hEngine);
}
else
{
throw new Exception(result.ToString());
}
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 获取性别信息
/// </summary>
/// <returns></returns>
public string GetGender()
{
var faceinfo = DetectFaces();
ASFAPI.ASFProcess(hEngine, bitmapImage.Width, bitmapImage.Height, bitmapImage.Format, bitmapImage.ImageData, faceinfo, (int)(EngineMode.性别识别));
GenderInfo gender = new GenderInfo();
ASFAPI.ASFGetGender(hEngine, ref gender);
int[] genderArray = new int[gender.num];
Marshal.Copy(gender.genderArray, genderArray, 0, genderArray.Length);
switch (genderArray[0])
{
case 0:
return("男");
case 1:
return("女");
default:
return("未知");
}
}
/// <summary>
/// 获取性别信息
/// </summary>
/// <returns></returns>
public string GetGender()
{
var faceinfo = DetectFaces();
if (faceinfo.faceOrient == IntPtr.Zero || faceinfo.faceRect == IntPtr.Zero)
{
return("未知");
}
var processResult = ASFAPI.ASFProcess(hEngine, bitmapImage.Width, bitmapImage.Height, bitmapImage.Format, bitmapImage.ImageData, faceinfo, (int)(EngineMode.性别识别));
if (processResult != (int)ResultCode.成功)
{
return("未知");
}
GenderInfo gender = new GenderInfo();
var genderResult = ASFAPI.ASFGetGender(hEngine, ref gender);
if (genderResult != (int)ResultCode.成功 || gender.num <= 0)
{
return("未知");
}
int[] genderArray = new int[gender.num];
Marshal.Copy(gender.genderArray, genderArray, 0, genderArray.Length);
switch (genderArray[0])
{
case 0:
return("男");
case 1:
return("女");
default:
return("未知");
}
}
/// <summary>
/// 释放引擎Handler
/// </summary>
/// <returns></returns>
public static bool DisposeEngine()
{
if (hEngine != IntPtr.Zero)
{
try
{
ResultCode result = (ResultCode)ASFAPI.ASFUninitEngine(hEngine);
if (result == ResultCode.成功)
{
return(true);
}
else
{
throw new Exception(result.ToString());
}
}
catch (Exception ex)
{
throw ex;
}
}
return(true);
}
/// <summary>
/// 获取人脸检测结果
/// </summary>
/// <param name="image"></param>
/// <param name="bitmapImage"></param>
/// <returns></returns>
public MultiFaceInfo DetectFaces(Bitmap image, out BitmapImage bitmapImage)
{
bitmapImage = new BitmapImage(image);
bitmapImage.ParseImage();
MultiFaceInfo faceInfo = new MultiFaceInfo();
try
{
ResultCode result = (ResultCode)ASFAPI.ASFDetectFaces(hEngine, bitmapImage.Width, bitmapImage.Height, bitmapImage.Format, bitmapImage.ImageData, ref faceInfo);
if (result == ResultCode.成功)
{
return(faceInfo);
}
else
{
throw new Exception(result.ToString());
}
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 激活引擎
/// </summary>
/// <param name="appId">appid</param>
/// <param name="appKey">appkey</param>
/// <returns>激活结果</returns>
public static ResultCode ActivateEngine(string appId, string appKey)
{
int result = ASFAPI.ASFActivation(appId, appKey);
return((ResultCode)result);
}
