public void Do(PictureBox pictureBox, Action callback)
{
using (var imageFrame = _capture.QueryFrame().ToImage <Bgr, Byte>())
{
if (imageFrame != null)
{
var grayframe = imageFrame.Convert <Gray, byte>();
var faces = _cascadeClassifier.DetectMultiScale(grayframe, 1.1, 10,
Size.Empty); //the actual face detection happens here
foreach (var face in faces)
{
var c = CenterRect(face);
if (Helper.IsPointInPolygon(c, _points))
{
imageFrame.Draw(face, new Bgr(Color.Chartreuse),
1); //the detected face(s) is highlighted here using a box that is drawn around it/them
if (callback != null)
{
callback();
}
}
}
imageFrame.DrawPolyline(_points, true, new Bgr(Color.Crimson), 1);
var bmp = EmguHelper.ResizeImage(imageFrame.ToBitmap(), new Size(pictureBox.Width, pictureBox.Height));
pictureBox.Image = bmp;
}
}
}
private void RenderPolygon()
{
using (var imageFrame = _capture.QueryFrame().ToImage <Bgr, Byte>())
{
if (imageFrame != null)
{
_frameSize = imageFrame.Size;
if (_done)
{
imageFrame.DrawPolyline(_points.ToArray(), true, new Bgr(Color.Green), 1);
}
else
{
for (int i = 0; i < _points.Count; i++)
{
imageFrame.Draw(new CircleF(_points[i], 1), new Bgr(Color.Orange),
1);
}
}
var bmp = EmguHelper.ResizeImage(imageFrame.ToBitmap(), new Size(pictureBox1.Width, pictureBox1.Height));
pictureBox1.Image = bmp;
}
}
}
public void Do(PictureBox pictureBox, Action callback)
{
using (var imageFrame = _capture.QueryFrame().ToImage <Bgr, Byte>())
{
if (imageFrame != null)
{
var grayframe = imageFrame.Convert <Gray, byte>();
using (HOGDescriptor des = new HOGDescriptor())
{
des.SetSVMDetector(HOGDescriptor.GetDefaultPeopleDetector());
MCvObjectDetection[] results = des.DetectMultiScale(grayframe);
var faces = new Rectangle[results.Length];
for (int i = 0; i < results.Length; i++)
{
faces[i] = results[i].Rect;
}
foreach (var face in faces)
{
var c = CenterRect(face);
if (Helper.IsPointInPolygon(c, _points))
{
imageFrame.Draw(face, new Bgr(Color.Chartreuse),
1); //the detected face(s) is highlighted here using a box that is drawn around it/them
if (callback != null)
{
callback();
}
}
}
imageFrame.DrawPolyline(_points, true, new Bgr(Color.Crimson), 1);
var bmp = EmguHelper.ResizeImage(imageFrame.ToBitmap(), new Size(pictureBox.Width, pictureBox.Height));
pictureBox.Image = bmp;
}
}
}
}