private void btnDetectFaces_Click(object sender, RoutedEventArgs e)
{
//Convert from Bgr to Gray Image
if (picCapture.Source != null)
{
CvInvoke.CvtColor(Image, grayImage, ColorConversion.Bgr2Gray);
//Enchance the image to get better result
CvInvoke.EqualizeHist(grayImage, grayImage);
System.Drawing.Rectangle[] faces = faceCascadeClassifier.DetectMultiScale(grayImage, 1.1, 3, System.Drawing.Size.Empty, System.Drawing.Size.Empty);
if (faces.Length > 0)
{
foreach (var face in faces)
{
CvInvoke.Rectangle(Image, face, new Bgr(System.Drawing.Color.Red).MCvScalar, 5);
Image <Bgr, Byte> resultImage = Image.Convert <Bgr, Byte>();
picCapture.Source = BitmapHelpers.ToBitmapSource(resultImage);
}
}
}
else
{
MessageBox.Show("Choose photo");
}
}
private void btnRecognizeFaces_Click(object sender, RoutedEventArgs e)
{
if (picCapture.Source != null)
{
CvInvoke.CvtColor(Image, grayImage, ColorConversion.Bgr2Gray);
//Enchance the image to get better result
CvInvoke.EqualizeHist(grayImage, grayImage);
System.Drawing.Rectangle[] faces = faceCascadeClassifier.DetectMultiScale(grayImage, 1.1, 3, System.Drawing.Size.Empty, System.Drawing.Size.Empty);
if (faces.Length > 0)
{
foreach (var face in faces)
{
CvInvoke.Rectangle(Image, face, new Bgr(System.Drawing.Color.Red).MCvScalar, 4);
Image <Bgr, Byte> resultImage = Image.Convert <Bgr, Byte>();
resultImage.ROI = face;
Image <Gray, Byte> grayFaceResult = resultImage.Convert <Gray, Byte>().Resize(200, 200, Inter.Cubic);
CvInvoke.EqualizeHist(grayFaceResult, grayFaceResult);
var result = recognizer.Predict(grayFaceResult);
//Debug.WriteLine(result.Label + ". " + result.Distance);
//Here results found known faces
if (result.Label != -1 && result.Distance < 2000)
{
CvInvoke.PutText(Image, PersonsNames[result.Label], new System.Drawing.Point(face.X - 2, face.Y - 2),
FontFace.HersheyComplex, 2.0, new Bgr(System.Drawing.Color.Green).MCvScalar);
CvInvoke.Rectangle(Image, face, new Bgr(System.Drawing.Color.Blue).MCvScalar, 5);
}
//here results did not found any know faces
else
{
CvInvoke.PutText(Image, "Unknown", new System.Drawing.Point(face.X - 2, face.Y - 2),
FontFace.HersheyComplex, 4.0, new Bgr(System.Drawing.Color.Orange).MCvScalar);
CvInvoke.Rectangle(Image, face, new Bgr(System.Drawing.Color.Red).MCvScalar, 2);
}
resultImage = Image.Convert <Bgr, Byte>();
picCapture.Source = BitmapHelpers.ToBitmapSource(resultImage);
}
}
else
{
MessageBox.Show("Choose photo");
}
}
}
private void btnImage_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog op = new OpenFileDialog();
op.Title = "Select a picture";
op.Filter = "All supported graphics|*.jpg;*.jpeg;*.png|" +
"JPEG (*.jpg;*.jpeg)|*.jpg;*.jpeg|" +
"Portable Network Graphic (*.png)|*.png";
if (op.ShowDialog() == true)
{
Image = new Image <Bgr, byte>(op.FileName);
picCapture.Source = BitmapHelpers.ToBitmapSource(Image);
}
}
private void ProccesFrame(object sender, EventArgs e)
{
videoCapture.Retrieve(frame, 0);
if (!picCapture.CheckAccess())
{
picCapture.Dispatcher.Invoke(new Action(delegate()
{
currentFrame = frame.ToImage <Bgr, Byte>().Resize(Convert.ToInt32(picCapture.Width), Convert.ToInt32(picCapture.Height), Inter.Cubic);
}));
}
else
{
currentFrame = frame.ToImage <Bgr, Byte>().Resize(Convert.ToInt32(picCapture.Width), Convert.ToInt32(picCapture.Height), Inter.Cubic);
}
//detect faces
if (!picCapture.CheckAccess())
{
picCapture.Dispatcher.Invoke(new Action(delegate()
{
if (faceDetectionEnabled)
{
//Convert from Bgr to Gray Image
Mat grayImage = new Mat();
CvInvoke.CvtColor(currentFrame, grayImage, ColorConversion.Bgr2Gray);
//Enchance the image to get better result
CvInvoke.EqualizeHist(grayImage, grayImage);
System.Drawing.Rectangle[] faces = faceCascadeClassifier.DetectMultiScale(grayImage, 1.1, 3, System.Drawing.Size.Empty, System.Drawing.Size.Empty);
if (faces.Length > 0)
{
foreach (var face in faces)
{
CvInvoke.Rectangle(currentFrame, face, new Bgr(System.Drawing.Color.Red).MCvScalar, 2);
Image <Bgr, Byte> resultImage = currentFrame.Convert <Bgr, Byte>();
resultImage.ROI = face;
if (faceRecognationEnabled)
{
Image <Gray, Byte> grayFaceResult = resultImage.Convert <Gray, Byte>().Resize(200, 200, Inter.Cubic);
CvInvoke.EqualizeHist(grayFaceResult, grayFaceResult);
var result = recognizer.Predict(grayFaceResult);
//Debug.WriteLine(result.Label + ". " + result.Distance);
//Here results found known faces
if (result.Label != -1 && result.Distance < 2000)
{
CvInvoke.PutText(currentFrame, PersonsNames[result.Label], new System.Drawing.Point(face.X - 2, face.Y - 2),
FontFace.HersheyComplex, 1.0, new Bgr(System.Drawing.Color.Orange).MCvScalar);
CvInvoke.Rectangle(currentFrame, face, new Bgr(System.Drawing.Color.Green).MCvScalar, 2);
}
//here results did not found any know faces
else
{
CvInvoke.PutText(currentFrame, "Unknown", new System.Drawing.Point(face.X - 2, face.Y - 2),
FontFace.HersheyComplex, 1.0, new Bgr(System.Drawing.Color.Orange).MCvScalar);
CvInvoke.Rectangle(currentFrame, face, new Bgr(System.Drawing.Color.Red).MCvScalar, 2);
}
}
}
}
}
}));
}
else
{
if (faceDetectionEnabled)
{
//Convert from Bgr to Gray Image
Mat grayImage = new Mat();
CvInvoke.CvtColor(currentFrame, grayImage, ColorConversion.Bgr2Gray);
//Enchance the image to get better result
CvInvoke.EqualizeHist(grayImage, grayImage);
System.Drawing.Rectangle[] faces = faceCascadeClassifier.DetectMultiScale(grayImage, 1.1, 3, System.Drawing.Size.Empty, System.Drawing.Size.Empty);
if (faces.Length > 0)
{
foreach (var face in faces)
{
CvInvoke.Rectangle(currentFrame, face, new Bgr(System.Drawing.Color.Red).MCvScalar, 2);
Image <Bgr, Byte> resultImage = currentFrame.Convert <Bgr, Byte>();
resultImage.ROI = face;
if (faceRecognationEnabled)
{
Image <Gray, Byte> grayFaceResult = resultImage.Convert <Gray, Byte>().Resize(200, 200, Inter.Cubic);
CvInvoke.EqualizeHist(grayFaceResult, grayFaceResult);
var result = recognizer.Predict(grayFaceResult);
Debug.WriteLine(result.Label + ". " + result.Distance);
//Here results found known faces
if (result.Label != -1 && result.Distance < 2000)
{
CvInvoke.PutText(currentFrame, PersonsNames[result.Label], new System.Drawing.Point(face.X - 2, face.Y - 2),
FontFace.HersheyComplex, 1.0, new Bgr(System.Drawing.Color.Orange).MCvScalar);
CvInvoke.Rectangle(currentFrame, face, new Bgr(System.Drawing.Color.Green).MCvScalar, 2);
}
//here results did not found any know faces
else
{
CvInvoke.PutText(currentFrame, "Unknown", new System.Drawing.Point(face.X - 2, face.Y - 2),
FontFace.HersheyComplex, 1.0, new Bgr(System.Drawing.Color.Orange).MCvScalar);
CvInvoke.Rectangle(currentFrame, face, new Bgr(System.Drawing.Color.Red).MCvScalar, 2);
}
}
}
}
}
}
//Render the video capture into Picture Box picCapture
if (!picCapture.CheckAccess())
{
picCapture.Dispatcher.Invoke(new Action(delegate()
{
picCapture.Source = BitmapHelpers.ToBitmapSource(currentFrame);
}));
}
else
{
picCapture.Source = BitmapHelpers.ToBitmapSource(currentFrame);
}
}
