public bool TrainRecognizer(int recognizerIndex)
{
var allFaces = new List <ImageWithLabelModel>();
allFaces = _parameters.UseExplorer
? _localStorageService.GetAllImagesWithLabels()
: _databaseService.GetAllImagesWithLabels();
var count = allFaces.Count();
if (count <= 0)
{
return(true);
}
var faceImages = new Image <Gray, byte> [count];
var faceLabels = new int[count];
for (var i = 0; i < count; i++)
{
var stream = new MemoryStream();
stream.Write(allFaces[i].Data, 0, allFaces[i].Data.Length);
var faceImage = new Image <Gray, byte>(new Bitmap(stream));
faceImages[i] = faceImage.Resize(100, 100, Inter.Cubic);
faceLabels[i] = allFaces[i].PersonId;
}
FaceRecognizer.Train(faceImages, faceLabels);
switch (recognizerIndex)
{
case 0:
FaceRecognizer.Write(
_parameters.UseExplorer
? RecognizerConfig.EigenLocalConfigurationPath
: RecognizerConfig.EigenDatabaseConfigurationPath);
break;
case 1:
FaceRecognizer.Write(
_parameters.UseExplorer
? RecognizerConfig.FisherLocalConfigurationPath
: RecognizerConfig.FisherDatabaseConfigurationPath);
break;
case 2:
FaceRecognizer.Write(
_parameters.UseExplorer
? RecognizerConfig.LbphLocalConfigurationPath
: RecognizerConfig.LbphDatabaseConfigurationPath);
break;
}
return(true);
}