/// <summary>
/// 人脸检测
/// </summary>
/// <param name="width">图片宽度,必须为4的倍数</param>
/// <param name="height">YUYV/I420/NV21/NV12格式的图片高度为2的倍数，BGR24格式的图片高度不限制</param>
/// <param name="format">颜色空间格式</param>
/// <param name="pImageData">图片数据</param>
/// <param name="deepCopy">返回结果是否进行深拷贝,默认为true,若设置为false则每次调用会覆盖上一次的结果(内存覆盖)</param>
/// <returns></returns>
public MultiFaceModel FaceDetection(int width, int height, int format, IntPtr pImageData, bool deepCopy = true)
{
ResultCode resultCode =
(ResultCode)ArcFaceApi.ASFDetectFaces(EngineHandle,
width, height, format, pImageData,
out AsfMultiFaceInfo multiFaceInfo);
if (resultCode != ResultCode.成功)
{
throw new ResultCodeException(resultCode);
}
if (!deepCopy)
{
return(new MultiFaceModel(multiFaceInfo));
}
int faceRectSize = Marshal.SizeOf <Mrect>() * multiFaceInfo.faceNum;
int faceOrientSize = Marshal.SizeOf <int>() * multiFaceInfo.faceNum;;
AsfMultiFaceInfo multiFaceInfoCopy = new AsfMultiFaceInfo()
{
faceRect = Marshal.AllocCoTaskMem(faceRectSize),
faceOrient = Marshal.AllocCoTaskMem(faceOrientSize),
faceNum = multiFaceInfo.faceNum
};
CopyMemory(multiFaceInfoCopy.faceRect, multiFaceInfo.faceRect, faceRectSize);
CopyMemory(multiFaceInfoCopy.faceOrient, multiFaceInfo.faceOrient, faceOrientSize);
return(new MultiFaceModel(multiFaceInfoCopy));
}
/// <summary>
/// 人脸信息检测（年龄/性别/人脸3D角度）最多支持4张人脸信息检测，超过部分返回未知
/// </summary>
/// <param name="width">图片宽度为4的倍数且大于0</param>
/// <param name="height">YUYV/I420/NV21/NV12格式的图片高度为2的倍数，BGR24格式的图片高度不限制</param>
/// <param name="format">颜色空间格式</param>
/// <param name="pImageData">图片数据</param>
/// <param name="detectedFaces">检测到的人脸信息</param>
/// <param name="combinedMask">初始化中参数combinedMask与ASF_AGE| ASF_GENDER| ASF_FACE3DANGLE的交集的子集</param>
public void FaceProcess(int width, int height, int format, IntPtr pImageData, MultiFaceModel detectedFaces, uint combinedMask = ArcFaceFunction.AGE | ArcFaceFunction.FACE_3DANGLE | ArcFaceFunction.GENDER)
{
//取交集
combinedMask = combinedMask & this.CombinedMask;
AsfMultiFaceInfo multiFaceInfo = detectedFaces.MultiFaceInfo;
ResultCode result = (ResultCode)ArcFaceApi.ASFProcess(EngineHandle, width, height, format, pImageData,
ref multiFaceInfo, combinedMask);
if (result != ResultCode.成功)
{
throw new ResultCodeException(result);
}
}
public MultiFaceModel(AsfMultiFaceInfo multiFaceInfo)
{
this.MultiFaceInfo = multiFaceInfo;
this.FaceInfoList = new List <AsfSingleFaceInfo>();
Mrect[] faceRects = multiFaceInfo.faceRect.ToStructArray <Mrect>(multiFaceInfo.faceNum);
int[] faceOrient = multiFaceInfo.faceOrient.ToStructArray <int>(multiFaceInfo.faceNum);
for (int i = 0; i < multiFaceInfo.faceNum; i++)
{
AsfSingleFaceInfo faceInfo = new AsfSingleFaceInfo
{
faceOrient = faceOrient[i],
faceRect = faceRects[i]
};
FaceInfoList.Add(faceInfo);
}
}
