public static void AddFace(string id, byte[] featureData)
{
try
{
var fileName = Path.Combine(_FaceDataPath, id + ".dat");
System.IO.File.WriteAllBytes(fileName, featureData);
var faceModel = new FaceModel
{
lFeatureSize = featureData.Length,
pbFeature = Marshal.AllocHGlobal(featureData.Length)
};
Marshal.Copy(featureData, 0, faceModel.pbFeature, featureData.Length);
_FaceLib.Items.Add(new FaceLib.Item()
{
OrderId = DateTime.Now.Ticks, ID = id, FaceModel = faceModel
});
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "错误", MessageBoxButtons.YesNo, MessageBoxIcon.Error, MessageBoxDefaultButton.Button1);
}
MessageBox.Show("注册成功", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information, MessageBoxDefaultButton.Button1);
}
/// <summary>
/// 初始化
/// </summary>
/// <param name="appId">虹软SDK的AppId</param>
/// <param name="dKey">虹软SDK人脸检测的Key</param>
/// <param name="rKey">虹软SDK人脸比对的Key</param>
/// <param name="orientPriority">脸部角度，毋宁说是鼻子方向，上下为0或180度，左右为90或270度</param>
/// <param name="scale">最小人脸尺寸有效值范围[2,50] 推荐值 16。该尺寸是人脸相对于所在图片的长边的占比。例如，如果用户想检测到的最小人脸尺寸是图片长度的 1/8，那么这个 scale 就应该设置为8</param>
/// <param name="maxFaceNumber">用户期望引擎最多能检测出的人脸数有效值范围[1,100]</param>
/// <param name="faceDataPath">人脸数据文件夹</param>
/// <param name="rateH">视频图片采集高度和显示高度的比值</param>
/// <param name="rateW">视频图片采集宽度和显示宽度的比值</param>
/// <param name="message"></param>
/// <returns></returns>
public static bool Init(out string message, string appId, string dKey, string rKey, EOrientPriority orientPriority = EOrientPriority.Ext0, int scale = 16, int maxFaceNumber = 10, string faceDataPath = "d:\\FeatureData")
{
if (scale < 2 || scale > 50)
{
message = "scale的值必须在2-50之间";
return(false);
}
if (maxFaceNumber < 1 || maxFaceNumber > 100)
{
message = "maxFaceNumber的值必须在1-100之间";
return(false);
}
_DBuffer = Marshal.AllocCoTaskMem(20 * 1024 * 1024);
_RBuffer = Marshal.AllocCoTaskMem(40 * 1024 * 1024);
var initResult = (ErrorCode)ArcWrapper.DInit(appId, dKey, _DBuffer, 20 * 1024 * 1024, out _DEnginer, (int)orientPriority, scale, maxFaceNumber);
if (initResult != ErrorCode.Ok)
{
message = $"初始化人脸检测引擎失败，错误代码:{(int)initResult}，错误描述：{ ((DescriptionAttribute)(initResult.GetType().GetCustomAttribute(typeof(DescriptionAttribute), false))).Description}";
return(false);
}
initResult = (ErrorCode)ArcWrapper.RInit(appId, rKey, _RBuffer, 40 * 1024 * 1024, out _REngine);
if (initResult != ErrorCode.Ok)
{
message = $"初始化人脸比对引擎失败，错误代码:{(int)initResult}，错误描述：{ ((DescriptionAttribute)(initResult.GetType().GetCustomAttribute(typeof(DescriptionAttribute), false))).Description}";
return(false);
}
FaceResults = new FaceResults(maxFaceNumber);
_FaceDataPath = faceDataPath;
if (!Directory.Exists(faceDataPath))
{
Directory.CreateDirectory(faceDataPath);
}
else
{
foreach (var file in Directory.GetFiles(faceDataPath))
{
var info = new FileInfo(file);
var data = File.ReadAllBytes(file);
var faceModel = new FaceModel
{
lFeatureSize = data.Length,
pbFeature = Marshal.AllocCoTaskMem(data.Length)
};
Marshal.Copy(data, 0, faceModel.pbFeature, data.Length);
_FaceLib.Items.Add(new FaceLib.Item()
{
OrderId = 0, ID = info.Name.Replace(info.Extension, ""), FaceModel = faceModel
});
}
}
_MaxFaceNumber = maxFaceNumber;
message = "初始化成功";
return(true);
}
public static void AddFace(string id, byte[] featureData)
{
var fileName = Path.Combine(_FaceDataPath, id + ".dat");
System.IO.File.WriteAllBytes(fileName, featureData);
var faceModel = new FaceModel
{
lFeatureSize = featureData.Length,
pbFeature = Marshal.AllocHGlobal(featureData.Length)
};
Marshal.Copy(featureData, 0, faceModel.pbFeature, featureData.Length);
_FaceLib.Items.Add(new FaceLib.Item()
{
OrderId = DateTime.Now.Ticks, ID = id, FaceModel = faceModel
});
}
public static void InitFace(string id, byte[] featureData, Image img, string name, string tablecode)
{
var fileName = Path.Combine(_FaceDataPath, id + ".dat");
System.IO.File.WriteAllBytes(fileName, featureData);
fileName = Path.Combine(_FaceImagePath, id + ".bmp");
img.Save(fileName);
var faceModel = new FaceModel
{
Size = featureData.Length,
PFeature = Marshal.AllocHGlobal(featureData.Length)
};
Marshal.Copy(featureData, 0, faceModel.PFeature, featureData.Length);
_FaceLib[0].Items.Add(new FaceLib.Item()
{
OrderId = DateTime.Now.Ticks, ID = id, FaceModel = faceModel, Name = name, TableNum = tablecode
});
}
public static extern int Match(IntPtr engine, ref FaceModel faceModel1, ref FaceModel faceModel2, out float score);
public static extern int ExtractFeature(IntPtr engine, ref ImageData imageData, ref FaceFeatureInput faceFeatureInput, out FaceModel faceModel);
/// <summary>
/// 人脸比对
/// </summary>
/// <param name="bitmap">输入图片</param>
/// <param name="featureDataIndex">需要转换人脸特征的序号</param>
public static void FaceMatch(Bitmap bitmap, int featureDataIndex = -1)
{
var bmpData = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
var imageData = new ImageData
{
u32PixelArrayFormat = 513, //Rgb24,
i32Width = bitmap.Width,
i32Height = bitmap.Height,
pi32Pitch = new int[4],
ppu8Plane = new IntPtr[4]
};
imageData.pi32Pitch[0] = bmpData.Stride;
imageData.ppu8Plane[0] = bmpData.Scan0;
try
{
FaceModel faceModel = new FaceModel();
IntPtr pDetectResult = Marshal.AllocHGlobal(Marshal.SizeOf(faceModel));
var ret = (ErrorCode)ArcWrapper.Detection(_DEnginer, ref imageData, out pDetectResult);
if (ret != ErrorCode.Ok)
{
return;
}
var detectResult = Marshal.PtrToStructure <DetectResult>(pDetectResult);
FaceResults.FaceNumber = detectResult.nFace;
if (detectResult.nFace == 0)
{
return;
}
for (int i = 0; i < detectResult.nFace; i++)
{
IntPtr p = new IntPtr(detectResult.rcFace.ToInt32() + i * Marshal.SizeOf <FaceRect>());
var faceRect = Marshal.PtrToStructure <FaceRect>(p);
FaceResults[i].Rectangle = new Rectangle(faceRect.left, faceRect.top, faceRect.right - faceRect.left, faceRect.bottom - faceRect.top);
p = new IntPtr(detectResult.lfaceOrient.ToInt32() + i * Marshal.SizeOf <int>());
var faceOrient = Marshal.PtrToStructure <int>(p);
var faceFeatureInput = new FaceFeatureInput
{
rcFace = faceRect,
lOrient = faceOrient
};
if ((ErrorCode)ArcWrapper.ExtractFeature(_REngine, ref imageData, ref faceFeatureInput, out faceModel) != ErrorCode.Ok)
{
continue;
}
if (featureDataIndex == i)
{
if (FaceResults[i].FeatureData == null)
{
FaceResults[i].FeatureData = new byte[faceModel.lFeatureSize];
}
Marshal.Copy(faceModel.pbFeature, FaceResults[i].FeatureData, 0, faceModel.lFeatureSize);
}
bool matched = false;
foreach (var item in _FaceLib.Items.OrderByDescending(ii => ii.OrderId))
{
var fm = item.FaceModel;
float score = 0f;
ArcWrapper.Match(_REngine, ref fm, ref faceModel, out score);
if (score > 0.7)
{
matched = true;
item.OrderId = DateTime.Now.Ticks;
FaceResults[i].ID = item.ID;
FaceResults[i].Score = score;
break;
}
}
if (!matched)
{
FaceResults[i].ID = "不认识";
FaceResults[i].Score = 0;
}
}
}
finally
{
bitmap.UnlockBits(bmpData);
}
}