public async Task <List <FaceMetadata> > DetectFacesAsync(Stream stream)
{
var faceServiceClient = _faceService.CreateAzureClient();
stream.Seek(0, SeekOrigin.Begin);
var faces = await faceServiceClient.DetectAsync(stream, true, true);
return(faces.Select(i => new FaceMetadata()
{
UniqueId = i.FaceId,
FacePosition =
new Rectangle(i.FaceRectangle.Left, i.FaceRectangle.Top, i.FaceRectangle.Width,
i.FaceRectangle.Height),
CreatedDate = DateTime.Now
}).ToList());
}
public async Task <List <IdentifiedPerson> > IdentifyAsync(List <FaceMetadata> faces, Stream stream)
{
var personRoot = _faceService.GetPersonGroup();
var persons = _faceService.GetAllPersons();
try
{
using (var faceServiceClient = _faceService.CreateAzureClient())
{
var detectResult2 =
await
faceServiceClient.IdentifyAsync(
personRoot.PersonGroupId.ToLowerInvariant(),
faces.Select(i => i.UniqueId).ToArray(), 0.5f, 3);
var result = new List <IdentifiedPerson>();
foreach (var person in detectResult2)
{
result.AddRange(person.Candidates.Select(i => new IdentifiedPerson()
{
FaceId = person.FaceId,
Id = i.PersonId,
Confidence = i.Confidence,
Data =
persons.FirstOrDefault(
f => !string.IsNullOrEmpty(f.AzureId) && Guid.Parse(f.AzureId) == i.PersonId)
}).ToList());
}
return(result);
}
}
catch (FaceAPIException faceEx)
{
Log.Info("Face exception " + faceEx.ErrorMessage, this);
}
catch (Exception e)
{
Log.Info("Exception during detection + " + e, this);
}
return(new List <IdentifiedPerson>());
}
