public async Task <IActionResult> Search(FaceSearchModel model)
{
var matches = new Dictionary <string, float>();
List <Face> detectedFaces;
if (!string.IsNullOrEmpty(model.Url))
{
detectedFaces = await _faceRecognition.Detect(new Uri(model.Url));
}
else if (model.Face != null)
{
detectedFaces = await _faceRecognition.Detect(model.Face.OpenReadStream());
}
else
{
return(BadRequest());
}
foreach (var detectedFace in detectedFaces)
{
Dictionary <string, float> found = await _faceRecognition.Search(model.ListId, detectedFace.Id.ToString(), new Dictionary <string, object>
{
{ "largeFaceListId", model.ListId }
});
foreach (var match in found)
{
matches.Add(match.Key, match.Value);
}
}
return(Ok(matches));
}
/// <inheritdoc />
public async Task <bool> Authenticate(string email, Stream faceStream)
{
var document = await LoadUserData();
var node = document.SelectSingleNode($"/users/user[@email='{email}']");
Guid personId = Guid.Parse(node.Attributes["id"].Value);
// Detect faces in the image and use the first one for authentication
List <Face> faces = await _faceRecognition.Detect(faceStream);
float confidence = await _faceRecognition.Verify(_group, faces[0].Id.ToString(), new Dictionary <string, object>
{
{ "largePersonGroupId", _group.ToLower().Replace(' ', '-') },
{ "personId", personId.ToString() }
});
return(confidence > float.Parse(_configuration["Identity:Verification Threshold"]));
}