Face screenshot

Question

Hey there!

Does anyone have any idea how to capture the face and make its snapshot and save it to bitmap???

I already read the article about making screenshots, but I still have no idea how to save a specific area as image data...

I would appreciate that if someone could help me.

Answer 1

Hi,

There is a wrapper for the Open CV call Emgu

these library is contains 3 references (Emgu.CV, Emgu.CV.UI, Emgu.Util)

you can work and get the face easily with these libraries

Download here

and run the following code sample

using (HaarCascade face = new HaarCascade(faceFileName))
{
  var frame = _kinectSensor.ColorStream.OpenNextFrame(100);
  var image = frame.ToOpenCVImage<Rgb, Byte>();
  using (Image<Gray, Byte> gray = image.Convert<Gray, Byte>()) //Convert it to Grayscale
  {
    gray._EqualizeHist();
    MCvAvgComp[] facesDetected = face.Detect(
                       gray,
                       1.1,
                       10,
Emgu.CV.CvEnum.HAAR_DETECTION_TYPE.DO_CANNY_PRUNING,
                       new System.Drawing.Size(20, 20));
    foreach (MCvAvgComp f in facesDetected)
    {
      var rect = new System.Drawing.Rectangle(f.rect.X - f.rect.Width / 2
                            , f.rect.Y - f.rect.Height / 2
                            , f.rect.Width * 2
                            , f.rect.Height * 2);
                        image.Draw(f.rect, new Rgb(System.Drawing.Color.Blue), 2);
    }
    Dispatcher.BeginInvoke(new Action(() => { yourImage.Source = image.ToBitmapSource(); }));
  }
}

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Thanks,
MOHAMED A. SAKR | Software Development Lead Engineer | EgyptNetwork
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Answer 2

Any Updates

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Thanks,
MOHAMED A. SAKR | Software Development Lead Engineer | EgyptNetwork
Please remember to click “Mark as Answer” on the post that helps you. This can be beneficial to other community members. Also try to Vote as Helpful