/// <summary>
/// 人脸特征比对
/// </summary>
/// <param name="faceFeature1">特征1</param>
/// <param name="faceFeature2">特征2</param>
/// <param name="similarity">相似度</param>
/// <param name="compareModel">ASF_LIFE_PHOTO：用于生活照之间的特征比对；ASF_ID_PHOTO：用于证件照或证件照和生活照之间的特征比对</param>
/// <returns>返回0表示正常；返回负数请根据ErrorCodeUtil类注释查看；其他值请在官网-帮助中心查询</returns>
public int ASFFaceFeatureCompare(FaceFeature faceFeature1, FaceFeature faceFeature2, out float similarity, ASF_CompareModel compareModel = ASF_CompareModel.ASF_LIFE_PHOTO)
{
similarity = 0f;
if (faceFeature1 == null || faceFeature2 == null)
{
return(ErrorCodeUtil.FEATURE_IS_NULL);
}
#region 将特征对象转化为特征结构体，再转化为非托管内存
ASF_FaceFeature asfFeatureStruct1 = new ASF_FaceFeature();
asfFeatureStruct1.featureSize = faceFeature1.featureSize;
asfFeatureStruct1.feature = MemoryUtil.Malloc(asfFeatureStruct1.featureSize);
MemoryUtil.Copy(faceFeature1.feature, 0, asfFeatureStruct1.feature, asfFeatureStruct1.featureSize);
IntPtr pFeature1 = MemoryUtil.Malloc(MemoryUtil.SizeOf <ASF_FaceFeature>());
MemoryUtil.StructureToPtr(asfFeatureStruct1, pFeature1);
ASF_FaceFeature asfFeatureStruct2 = new ASF_FaceFeature();
asfFeatureStruct2.featureSize = faceFeature2.featureSize;
asfFeatureStruct2.feature = MemoryUtil.Malloc(asfFeatureStruct2.featureSize);
MemoryUtil.Copy(faceFeature2.feature, 0, asfFeatureStruct2.feature, asfFeatureStruct2.featureSize);
IntPtr pFeature2 = MemoryUtil.Malloc(MemoryUtil.SizeOf <ASF_FaceFeature>());
MemoryUtil.StructureToPtr(asfFeatureStruct2, pFeature2);
#endregion
//调用SDK接口
int retCode = ASFFunctions.ASFFaceFeatureCompare(pEngine, pFeature1, pFeature2, ref similarity, compareModel);
MemoryUtil.FreeArray(pFeature1, pFeature2, asfFeatureStruct1.feature, asfFeatureStruct2.feature);
return(retCode);
}
public static extern int ASFFaceFeatureCompare(IntPtr pEngine, IntPtr faceFeature1, IntPtr faceFeature2, ref float similarity, ASF_CompareModel compareModel = ASF_CompareModel.ASF_LIFE_PHOTO);
public static extern MResult ASFFaceFeatureCompare(IntPtr hEngine, ASF_FaceFeature faceFeature1, ASF_FaceFeature faceFeature2, out float confidenceLevel, ASF_CompareModel compareModel = ASF_CompareModel.ASF_LIFE_PHOTO);
public static extern int ASFFaceFeatureCompare(IntPtr pEngine, IntPtr faceFeature1, IntPtr faceFeature2, ref float confidenceLevel, ASF_CompareModel compareModel = ASF_CompareModel.ASF_LIFE_PHOTO);
/// <summary>
/// 人脸特征比对，输出比对相似度。
/// </summary>
/// <param name="feature1"></param>
/// <param name="feature2"></param>
/// <param name="compareModel"></param>
/// <returns></returns>
public float FaceFeatureCompare(ASF_FaceFeature feature1, ASF_FaceFeature feature2, ASF_CompareModel compareModel = ASF_CompareModel.ASF_LIFE_PHOTO)
{
ASFFunctions.ASFFaceFeatureCompare(EngineHandler, feature1, feature2, out float score, compareModel);
return(score);
}
