public async Task <bool> RemoveImageFromWhitelistAsync(StorageFile imageFile, string personName = null)
{
bool isSuccess = true;
if (!FaceApiUtils.ValidateImageFile(imageFile))
{
isSuccess = false;
}
else
{
// If personName is null use the folder name as person name
if (string.IsNullOrEmpty(personName))
{
personName = await FaceApiUtils.GetParentFolderNameAsync(imageFile);
}
var personId = _whitelist.GetPersonIdByName(personName);
var faceId = _whitelist.GetFaceIdByFilePath(imageFile.Path);
if (personId == Guid.Empty || faceId == Guid.Empty)
{
isSuccess = false;
}
else
{
await RemoveFace(personId, faceId);
// train whitelist
isSuccess = await TrainingWhitelistAsync();
}
}
return(isSuccess);
}
public async Task <List <string> > FaceRecognizeAsync(StorageFile imageFile)
{
var recogResult = new List <string>();
if (!FaceApiUtils.ValidateImageFile(imageFile))
{
throw new FaceRecognitionException(FaceRecognitionExceptionType.InvalidImage);
}
// detect all faces in the image
var faceIds = await DetectFacesFromImage(imageFile);
// try to identify all faces to person
var identificationResults = await _faceApiClient.IdentifyAsync(WhitelistId, faceIds);
// add identified person name to result list
foreach (var result in identificationResults)
{
if (result.Candidates.Length > 0)
{
var personName = _whitelist.GetPersonNameById(result.Candidates[0].PersonId);
Debug.WriteLine("Face ID Confidence: " + Math.Round(result.Candidates[0].Confidence * 100, 1) + "%");
recogResult.Add(personName);
}
}
return(recogResult);
}
public async Task <bool> AddImageToWhitelistAsync(StorageFile imageFile, string personName = null)
{
bool isSuccess = true;
// imageFile should be valid image file
if (!FaceApiUtils.ValidateImageFile(imageFile))
{
isSuccess = false;
}
else
{
var filePath = imageFile.Path;
// If personName is null/empty, use the folder name as person name
if (string.IsNullOrEmpty(personName))
{
personName = await FaceApiUtils.GetParentFolderNameAsync(imageFile);
}
// If person name doesn't exists, add it
var personId = _whitelist.GetPersonIdByName(personName);
if (personId == Guid.Empty)
{
var folder = await imageFile.GetParentAsync();
personId = await CreatePerson(personName, folder);
}
// detect faces
var faceId = await DetectFaceFromImage(imageFile);
await AddFace(personId, faceId, imageFile.Path);
// train whitelist
isSuccess = await TrainingWhitelistAsync();
}
return(isSuccess);
}