public static List <RecognizerResult> Detect(string imageFile)
{
List <RecognizerResult> rcgnResultList = new List <RecognizerResult>();
Image <Bgr, Byte> image;
try
{
image = new Image <Bgr, byte>(imageFile); //Read the files as an 8-bit Bgr image
}
catch (Exception e)
{
return(rcgnResultList);
}
// if image is too large, resize it
if (image.Width > 480)
{
image = image.Resize(((double)480 / (double)image.Width), INTER.CV_INTER_CUBIC);
}
List <Rectangle> faces = new List <Rectangle>();
DetectFace.Detect(image, "haarcascade_frontalface_default.xml", faces);
Image <Bgr, Byte> markedImage = image.Copy();
for (int index = 0; index < faces.Count; index++)
{
Rectangle face = faces[index];
// Save the detected faces to testing set
Image <Gray, Byte> result = image.Copy(face).Convert <Gray, Byte>();
result = result.Resize(trainingImgWidth, trainingImgHeight, INTER.CV_INTER_CUBIC);
string fileName = String.Format(@".\testingset\{0}.face{1}.bmp",
Path.GetFileName(imageFile), index);
result.Save(fileName);
// Mark the detected face on the image
markedImage.Draw(face, new Bgr(Color.Blue), 2);
// Try to recognize the face
RecognizerResult rcgnResult = Recognize(fileName);
rcgnResultList.Add(rcgnResult);
}
// Save the marked image to testing set
markedImage.Save(String.Format(@".\testingset\marked\{0}.bmp", Path.GetFileName(imageFile)));
return(rcgnResultList);
}
public static RecognizerResult Recognize(string unknownImg)
{
RecognizerResult rcgnResult = new RecognizerResult();
if (recognizer == null)
return null;
// Recognize the image
Image<Gray, Byte> testImage = new Image<Gray, Byte>(unknownImg);
float[] distances = recognizer.GetEigenDistances(testImage);
string[] labels = recognizer.Labels;
int num = labels.Count();
for (int i = 0; i < num; i++)
{
rcgnResult.Distances.Add(labels[i], distances[i]);
}
EigenObjectRecognizer.RecognitionResult result = recognizer.Recognize(testImage);
if (result != null)
{
rcgnResult.Distance = result.Distance;
rcgnResult.Label = result.Label;
}
rcgnResult.FileName = Path.GetFullPath(unknownImg);
return rcgnResult;
}