title: faceDetection EmguCV
body: <p>I having a problem on given green rectangle on the picture.jpg when the picture with 5 people in there. I'm using emguCV v2.2
  here the code for the button when i click and fire it.</p>
  
  <pre><code>Image InputImg = Image.FromFile(@"C:\img\Picture.jpg"); 
  Image&lt;Bgr,byte&gt; ImageFrame = new Image&lt;Bgr,byte&gt;(new Bitmap(InputImg));
  
  Image&lt;Gray, byte&gt; grayframe = ImageFrame.Convert&lt;Gray, byte&gt;();
   var faces =  grayframe.DetectHaarCascade(haar, 1.4, 4,
                                      HAAR_DETECTION_TYPE.DO_CANNY_PRUNING,
                                      new Size(25, 25))[0];
  foreach (var face in faces)
              {
                  ImageFrame.Draw(face.rect, new Bgr(Color.Green), 3);
              }
  CamImageBox.Image = ImageFrame;
  </code></pre>
  
  <p>I expected it should return me the picture.jpg with green rectangle on each faces. But it doesn't . May i know why? is any mistake here?</p>
  
  <p>Thanks</p>