public FindFacesResponse FindFacesUnmanaged(Bitmap bitmap)
{
FindFacesResponse response = new FindFacesResponse();
Image<Bgr, Byte> image = new Image<Bgr, Byte>(bitmap);
Image<Gray, Byte> gray = image.Convert<Gray, byte>();
MCvAvgComp[][] faces = gray.DetectHaarCascade(this.unmanagedHaarFace, 1.1, 1, Emgu.CV.CvEnum.HAAR_DETECTION_TYPE.DO_CANNY_PRUNING, new System.Drawing.Size(20, 20));
response.TotalFaces = faces[0].Length;
response.FacesWithEyes = 0;
response.Faces = new List<FaceStructure>();
foreach (var f in faces[0])
{
FaceStructure face = new FaceStructure();
face.Face = f.rect;
face.Eyes = new List<Rectangle>();
gray.ROI = f.rect;
MCvAvgComp[][] eyes = gray.DetectHaarCascade(this.unmanagedHaarEyes, 1.1, 1, Emgu.CV.CvEnum.HAAR_DETECTION_TYPE.DO_CANNY_PRUNING, new System.Drawing.Size(20, 20));
gray.ROI = Rectangle.Empty;
int ignore = eyes[0].Length > 0 ? ++ response.FacesWithEyes : 0;
foreach (var eye in eyes[0])
{
Rectangle eyeRect = new Rectangle();
eyeRect.X = f.rect.X + eye.rect.X;
eyeRect.Y = f.rect.Y + eye.rect.Y;
eyeRect.Width = eye.rect.Width;
eyeRect.Height = eye.rect.Height;
//eye.rect.Offset(f.rect.X, f.rect.Y);
face.Eyes.Add(eyeRect);
}
response.Faces.Add(face);
}
return response;
}
public void MarkFaces(Bitmap bitmap, FindFacesResponse faces)
{
Graphics g = Graphics.FromImage(bitmap);
if (faces.Faces != null)
{
foreach (var f in faces.Faces)
{
g.DrawRectangle(new Pen(Brushes.Red), f.Face);
if (f.Eyes.Count > 0)
{
g.DrawRectangles(new Pen(Brushes.Yellow), f.Eyes.ToArray());
}
}
}
g.Dispose();
}
public FindFacesResponse FindFacesManaged(Bitmap bitmap)
{
FindFacesResponse response = new FindFacesResponse();
var seq = openCV.Net.FaceDetector.DetectFaces(bitmap, managedHaarFace, new Size(20, 20), 1.1);
response.TotalFaces = seq.Count;
response.FacesWithEyes = 0;
response.Faces = new List<FaceStructure>();
foreach (var f in seq)
{
FaceStructure face = new FaceStructure();
face.Face = f.Rectangle;
face.Eyes = new List<Rectangle>();
Bitmap eyeImage = ExtractFaceImage(bitmap, f);
var eyeSeq = openCV.Net.FaceDetector.DetectFaces(eyeImage, managedHaarEyes);
int ignore = eyeSeq.Count > 0 ? ++response.FacesWithEyes : 0;
foreach (var eye in eyeSeq)
{
Rectangle eyeRect = new Rectangle();
eyeRect.X = f.Rectangle.X + eye.Rectangle.X;
eyeRect.Y = f.Rectangle.Y + eye.Rectangle.Y;
eyeRect.Width = eye.Rectangle.Width;
eyeRect.Height = eye.Rectangle.Height;
face.Eyes.Add(eyeRect);
}
response.Faces.Add(face);
}
return response;
}