public void TestHughCircle()
{
if (CudaInvoke.HasCuda)
{
Mat m = new Mat(480, 480, DepthType.Cv8U, 1);
m.SetTo(new MCvScalar(0));
CvInvoke.Circle(m, new Point(240, 240), 100, new MCvScalar(150), 10);
GpuMat gm = new GpuMat();
gm.Upload(m);
using (CudaHoughCirclesDetector detector = new CudaHoughCirclesDetector(1, 30, 120, 30, 10, 400))
using (GpuMat circlesGpu = new GpuMat())
using (Mat circlesMat = new Mat())
{
detector.Detect(gm, circlesGpu);
circlesGpu.Download(circlesMat);
CircleF[] circles = new CircleF[circlesMat.Cols];
GCHandle circlesHandle = GCHandle.Alloc(circles, GCHandleType.Pinned);
Emgu.CV.Util.CvToolbox.Memcpy(circlesHandle.AddrOfPinnedObject(), circlesMat.DataPointer, Marshal.SizeOf(typeof(CircleF)) * circles.Length);
circlesHandle.Free();
foreach (var circle in circles)
{
CvInvoke.Circle(m, Point.Round(circle.Center), (int)circle.Radius, new MCvScalar(255));
}
}
}
}
public void TestCudaHoughCircle()
{
if (CudaInvoke.HasCuda)
{
Mat m = new Mat(480, 480, DepthType.Cv8U, 1);
m.SetTo(new MCvScalar(0));
CvInvoke.Circle(m, new Point(240, 240), 100, new MCvScalar(150), 10);
GpuMat gm = new GpuMat();
gm.Upload(m);
using (CudaHoughCirclesDetector detector = new CudaHoughCirclesDetector(1, 30, 120, 30, 10, 400))
{
CircleF[] circles = detector.Detect(gm);
foreach (var circle in circles)
{
CvInvoke.Circle(m, Point.Round(circle.Center), (int)circle.Radius, new MCvScalar(255));
}
}
}
}
