/// <summary>
/// Find the pedestrian in the image
/// </summary>
/// <param name="image">The image</param>
/// <param name="processingTime">The processing time in milliseconds</param>
/// <returns>The region where pedestrians are detected</returns>
public static Rectangle[] Find(newWorld::Emgu.CV.IInputArray image, out long processingTime)
{
Stopwatch watch;
Rectangle[] regions;
using (newWorld::Emgu.CV.InputArray iaImage = image.GetInputArray())
{
#if !(__IOS__ || NETFX_CORE)
//if the input array is a GpuMat
//check if there is a compatible Cuda device to run pedestrian detection
if (iaImage.Kind == newWorld::Emgu.CV.InputArray.Type.CudaGpuMat)
{
//this is the Cuda version
using (newWorld::Emgu.CV.Cuda.CudaHOG des = new newWorld::Emgu.CV.Cuda.CudaHOG(new Size(64, 128), new Size(16, 16), new Size(8, 8), new Size(8, 8)))
{
des.SetSVMDetector(des.GetDefaultPeopleDetector());
watch = Stopwatch.StartNew();
using (newWorld::Emgu.CV.Cuda.GpuMat cudaBgra = new newWorld::Emgu.CV.Cuda.GpuMat())
using (newWorld::Emgu.CV.Util.VectorOfRect vr = new newWorld::Emgu.CV.Util.VectorOfRect())
{
newWorld::Emgu.CV.Cuda.CudaInvoke.CvtColor(image, cudaBgra, newWorld::Emgu.CV.CvEnum.ColorConversion.Bgr2Bgra);
des.DetectMultiScale(cudaBgra, vr);
regions = vr.ToArray();
}
}
}
else
#endif
{
//this is the CPU/OpenCL version
using (newWorld::Emgu.CV.HOGDescriptor des = new newWorld::Emgu.CV.HOGDescriptor())
{
des.SetSVMDetector(newWorld::Emgu.CV.HOGDescriptor.GetDefaultPeopleDetector());
watch = Stopwatch.StartNew();
newWorld::Emgu.CV.Structure.MCvObjectDetection[] results = des.DetectMultiScale(image);
regions = new Rectangle[results.Length];
for (int i = 0; i < results.Length; i++)
{
regions[i] = results[i].Rect;
}
watch.Stop();
}
}
processingTime = watch.ElapsedMilliseconds;
return(regions);
}
}
void RecognizePeopleDefault()
{
listBox1.Items.Clear();
currentMainFrameBitmap.Save("Промежуточное изображение.png");
allContours.Clear();
gr = Graphics.FromImage(frameForDrawing);
newWorld::Emgu.CV.Mat image = new newWorld::Emgu.CV.Mat("Промежуточное изображение.png");
long processingTime;
Rectangle[] results;
if (newWorld::Emgu.CV.Cuda.CudaInvoke.HasCuda)
{
using (newWorld::Emgu.CV.Cuda.GpuMat gpuMat = new newWorld::Emgu.CV.Cuda.GpuMat(image))
results = FindMen.Find(gpuMat, out processingTime);
}
else
{
using (newWorld::Emgu.CV.UMat uImage = image.GetUMat(newWorld::Emgu.CV.CvEnum.AccessType.ReadWrite))
results = FindMen.Find(uImage, out processingTime);
}
int i = 1;
foreach (Rectangle rect in results)
{
allContours.Add(rect);
listBox1.Items.Add("Спортсмен " + i.ToString());
i++;
// newWorld::Emgu.CV.CvInvoke.Rectangle(image, rect, new newWorld::Emgu.CV.Structure.Bgr(Color.Red).MCvScalar);
}
int j = 1;
foreach (Rectangle _contour in allContours)
{
gr.DrawRectangle(new Pen(Color.Red), _contour);
// gr.DrawLines(new Pen(Color.Red), _contour.ToArray());
gr.DrawString(j.ToString(), new Font("Arial", 14), Brushes.AliceBlue, _contour.X, _contour.Y);
j++;
}
pictureBox1.Image = frameForDrawing; // тут же подключается отрисовка
nRecogLabel.Text = results.Length.ToString();
// ToBinContours();
}
