//开始测量
private void Measure_Click(object sender, EventArgs e)
{
AddButton.Invoke(sender, EventArgs.Empty);
}
private void ProcessFrame(object sender, EventArgs e)
{
//capturing video
if (videoCapture != null && videoCapture.Ptr != IntPtr.Zero)
{
videoCapture.Retrieve(frame, 0);
currentFrame = frame.ToImage <Bgr, Byte>().Resize(CaptureCamera.Width, CaptureCamera.Height, Inter.Cubic);
//Detecting face
if (facesDetectionEnabled)
{
//Converting from blue green red format to grey picture format
Mat grayImage = new Mat();
CvInvoke.CvtColor(currentFrame, grayImage, ColorConversion.Bgr2Gray);
//Enhance for better image quality
CvInvoke.EqualizeHist(grayImage, grayImage);
Rectangle[] faces = faceCasacdeClassifier.DetectMultiScale(grayImage, 1.1, 3, Size.Empty, Size.Empty);
if (faces.Length > 0)
{
foreach (var face in faces)
{
//Adding Preson profile
Image <Bgr, Byte> resultImage = currentFrame.Convert <Bgr, Byte>();
resultImage.ROI = face;
Detected.SizeMode = PictureBoxSizeMode.StretchImage;
Detected.Image = resultImage.Bitmap;
if (EnableSaveImage)
{
string path = Directory.GetCurrentDirectory() + @"\TrainedImages";
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
//saving 10 images with certain delay
Task.Factory.StartNew(() => {
for (int i = 0; i < 10; i++)
{
resultImage.Resize(200, 200, Inter.Cubic).Save(path + @"\" + PersonName.Text + "_" + DateTime.Now.ToString("dd-mm-yyyy-hh-mm-ss") + ".jpg");
Thread.Sleep(1000);
}
});
}
EnableSaveImage = false;
if (AddButton.InvokeRequired)
{
AddButton.Invoke(new ThreadStart(delegate {
AddButton.Enabled = true;
}));
}
// recognizing face
if (isTrained)
{
Image <Gray, Byte> grayFaceResult = resultImage.Convert <Gray, Byte>().Resize(200, 200, Inter.Cubic);
CvInvoke.EqualizeHist(grayFaceResult, grayFaceResult);
var result = recognizer.Predict(grayFaceResult);
pictureBox1.Image = grayFaceResult.Bitmap;
pictureBox2.Image = TrainedFaces[result.Label].Bitmap;
Debug.WriteLine(result.Label + ". " + result.Distance);
if (result.Label != -1 && result.Distance < 2000)
{
CvInvoke.PutText(currentFrame, PersonsNames[result.Label], new Point(face.X - 2, face.Y - 2),
FontFace.HersheyComplex, 1.0, new Bgr(Color.Orange).MCvScalar);
CvInvoke.Rectangle(currentFrame, face, new Bgr(Color.Green).MCvScalar, 2);
}
else
{
CvInvoke.PutText(currentFrame, "Unknown", new Point(face.X - 2, face.Y - 2),
FontFace.HersheyComplex, 1.0, new Bgr(Color.Orange).MCvScalar);
CvInvoke.Rectangle(currentFrame, face, new Bgr(Color.Red).MCvScalar, 2);
}
}
}
}
}
CaptureCamera.Image = currentFrame.Bitmap;
}
if (currentFrame != null)
{
currentFrame.Dispose();
}
}
