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POEye and Mouth detection from face using haar-cascades
 

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  1. POEye and Mouth detection from face using haar-cascades
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    <p>I have extracted eyes and mouth from the face, but want to extract emotions from eyes and mouth.. However, mouth is not detected properly.. This is my code..</p> <pre><code>private void timer1_Tick(object sender, EventArgs e) { using (Image&lt;Bgr, byte&gt; nextFrame = cap.QueryFrame()) { if (nextFrame != null) { // there's only one channel (greyscale), hence the zero index //var faces = nextFrame.DetectHaarCascade(haar)[0]; Image&lt;Gray, byte&gt; grayframe = nextFrame.Convert&lt;Gray, byte&gt;(); Image&lt;Gray, Byte&gt; gray = nextFrame.Convert&lt;Gray, Byte&gt;(); Image&lt;Gray, Byte&gt; gray1 = nextFrame.Convert&lt;Gray, Byte&gt;(); var faces = grayframe.DetectHaarCascade( haar, 1.4, 4, HAAR_DETECTION_TYPE.DO_CANNY_PRUNING, new Size(nextFrame.Width / 8, nextFrame.Height / 8) )[0]; MCvAvgComp[][] eyes = gray.DetectHaarCascade(eye, 1.1, 1, Emgu.CV.CvEnum.HAAR_DETECTION_TYPE.DO_CANNY_PRUNING, new Size(20, 20)); gray.ROI = Rectangle.Empty; MCvAvgComp[][] mouthsDetected = gray.DetectHaarCascade(mouth, 1.1, 10, Emgu.CV.CvEnum.HAAR_DETECTION_TYPE.DO_CANNY_PRUNING, new Size(20, 20)); gray1.ROI = Rectangle.Empty; foreach (MCvAvgComp mouthsnap in mouthsDetected[0]) { Rectangle mouthRect = mouthsnap.rect; // mouthRect.Offset(f.rect.X, f.rect.Y); nextFrame.Draw(mouthRect, new Bgr(Color.Red), 2); detectedmouth = mouthRect; } foreach (MCvAvgComp eyesnap in eyes[0]) { Rectangle eyeRect = eyesnap.rect; // mouthRect.Offset(f.rect.X, f.rect.Y); nextFrame.Draw(eyeRect, new Bgr(Color.Green), 2); } foreach (var face in faces) { nextFrame.Draw(face.rect, new Bgr(Color.LightGreen), 3); facesnap = face.rect; } pictureBox1.Image = nextFrame.ToBitmap(); } } } private void Form1_Load(object sender, EventArgs e) { cap = new Capture(0); // adjust path to find your xml //haar = new HaarCascade("haarcascade_frontalface_alt2.xml"); haar = new HaarCascade("haarcascade_frontalface_alt_tree.xml"); mouth = new HaarCascade("Mouth.xml"); eye = new HaarCascade("haarcascade_eye_tree_eyeglasses.xml"); } private void button1_Click(object sender, EventArgs e) { Image snap = pictureBox1.Image; snap.Save("c:\\snapshot.jpg", System.Drawing.Imaging.ImageFormat.Jpeg); pictureBox2.Image = snap; pictureBox3.Image = cropImage(snap,facesnap); pictureBox4.Image = cropImage(snap, detectedmouth); } private static Image cropImage(Image img, Rectangle croparea) { Bitmap bmpImage = new Bitmap(img); Bitmap bmpCrop = bmpImage.Clone(croparea, bmpImage.PixelFormat); return (Image)(bmpCrop); } </code></pre> <p>Please help me in emotion detection and better mouth detection using c#.</p>
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    1. COAre you using a library for this, or have you written these classes yourself?
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    2. COi have directly written this code in cs page and add references of haarcascade files.
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    3. COOh, by saying mouth is not detected properly, you mean that mouthsDetected variable is empty array?
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