private void FlirCameraStream_OnSourceChanged(FlirCameraStream sender, FlirCamera Source)
{
if (Source == null)
{
CameraFeed.Invoke(new Action(() => { CameraFeed.Image = null; }));
FPSStatusLabel.Text = ((int)0).ToString("N2").PadLeft(3) + " FPS";
}
}
private void FlirCameraStream_OnNewImage(FlirCameraStream sender, Image <Bgr, byte> Image)
{
FpsCount++;
if (FpsCount >= 4) //About 15 fps
{
FpsCount = 0;
CameraFeed.Invoke(new Action(() => { CameraFeed.Image = (Image == null) ? null : Image.Bitmap; }));
FPSStatusLabel.Text = sender.FPS.ToString("N2").PadLeft(3) + " FPS";
}
}
private void Capture_ImageGrabbed(object sender, EventArgs e)
{
lock (Capture)
{
if (Busy)
{
return;
}
Busy = true;
}
try
{
Capture.Retrieve(CameraFeed);
var imageFrame = CameraFeed.ToImage <Bgr, byte>();
#region smooth
var imgSmoothed = imageFrame.PyrDown().PyrUp();
imgSmoothed._SmoothGaussian(Smooth);
imageBox2.Image = imgSmoothed;
#endregion
#region Color filter
var imgColorFiltered = imgSmoothed.InRange(new Bgr(Bmin, Gmin, Rmin), new Bgr(Bmax, Gmax, Rmax));
imgColorFiltered = imgColorFiltered.PyrDown().PyrUp();
imgColorFiltered._SmoothGaussian(Smooth); // 3
imageBox3.Image = imgColorFiltered;
#endregion
#region erosion, delete noise
//var imageErode = imgColorFiltered.Erode(2);
//imageBox4.Image = imageErode;
#endregion
#region
//var imageDilate = imageErode.Dilate(5);
//imageBox5.Image = imageDilate;
#endregion
#region opening
// open > erosion and dilate
Mat kernel = CvInvoke.GetStructuringElement(ElementShape.Rectangle, new Size(5, 5), new Point(-1, -1));
var opening = imgColorFiltered.MorphologyEx(MorphOp.Open, kernel, new Point(-1, -1), 1, BorderType.Default, new MCvScalar(1.0));
imageBox4.Image = opening;
#endregion
#region closing
// open > erosion and dilate
//Mat kernel = CvInvoke.GetStructuringElement(ElementShape.Rectangle, new Size(5, 5), new Point(-1, -1));
//var opening = imgColorFiltered.MorphologyEx(MorphOp.Close, kernel, new Point(-1, -1), 1, BorderType.Default, new MCvScalar(1.0));
//imageBox4.Image = opening;
#endregion
#region gradient
// open > erosion and dilate
//Mat kernel = CvInvoke.GetStructuringElement(ElementShape.Rectangle, new Size(5, 5), new Point(-1, -1));
//var opening = imgColorFiltered.MorphologyEx(MorphOp.Gradient, kernel, new Point(-1, -1), 1, BorderType.Default, new MCvScalar(1.0));
//imageBox4.Image = opening;
#endregion
#region Canny and edge detection
//UMat cannyEdges = new UMat();
//CvInvoke.Canny(imageDilate, cannyEdges, CannyThreshold1, CannyThreshold2, CannyApertureSize, CannyL2Gradient);
//imageBox6.Image = cannyEdges;
#endregion
#region objects
VectorOfVectorOfPoint contours = new VectorOfVectorOfPoint();
CvInvoke.FindContours(opening /*cannyEdges*/, contours, null, RetrType.External, ChainApproxMethod.ChainApproxSimple);
int count = contours.Size;
for (int i = 0; i < count; i++)
{
using (VectorOfPoint contour = contours[i])
using (VectorOfPoint approxContour = new VectorOfPoint())
{
CvInvoke.ApproxPolyDP(contour, approxContour, CvInvoke.ArcLength(contour, true) * 0.05, true);
double area = CvInvoke.ContourArea(approxContour, false);
if (area > 300)
{
CvInvoke.DrawContours(imageFrame, contour, -1, new MCvScalar(255, 0, 0), 2);
imageFrame.Draw($"{area}", new Point(50, 50), Emgu.CV.CvEnum.FontFace.HersheySimplex, 0.8, new Bgr(Color.Red));
}
}
}
#endregion
imageBox1.Image = imageFrame;
//var imgSmoothed = imageFrame.PyrDown().PyrUp();
//imgSmoothed._SmoothGaussian(3);
//imageBox2.Image = imgSmoothed;
//var imgColorFiltered = imgSmoothed.InRange(new Bgr(Bmin, Gmin, Rmin), new Bgr(Bmax, Gmax, Rmax));
//imgColorFiltered = imgColorFiltered.PyrDown().PyrUp();
//imgColorFiltered._SmoothGaussian(3);
//imageBox3.Image = imgColorFiltered;
//Gray grayCannyThreshold = new Gray(GrayCannyTh);
//Gray grayCircleThreshold = new Gray(GrayCircleTh);
//Gray grayLinking = new Gray(80);
//var imgCanny = imgColorFiltered.Canny(grayCannyThreshold.Intensity, grayLinking.Intensity);
//imgColorFiltered.Canny(1.0, 2.0, 3, false);
//var imgCircles = imageFrame.CopyBlank();
//var imgLines = imageFrame.CopyBlank();
//var imgPoly = imageFrame.CopyBlank();
//double dblAccumRes = 1.0;
//double dblMinDist = 1.0;
//int intMinRadius = 50;
//int intMaxRadius = 150;
////var circles = imgColorFiltered.HoughCircles(grayCannyThreshold, grayCircleThreshold, dblAccumRes, dblMinDist, intMinRadius, intMaxRadius)[0];
////foreach (var circ in circles)
////{
//// imgCircles.Draw(circ, new Bgr(Color.Red), 2);
//// imageFrame.Draw(circ, new Bgr(Color.Red), 2);
////}
////Contour<Point> contours = imgCanny.FindContours();
////List<RotatedRect> lstRectangles = new List<RotatedRect>();
//Double dblRhoRes = 1.0;
//Double dblThetaRes = 4.0 * (Math.PI / 180.0);
//int intThreshold = 20;
//Double dblMinLineWidth = 30.0;
//Double dblMinGapBetweenLines = 10.0;
//imgColorFiltered.Ho
//LineSegment2D[] lines = imgCanny.Clone().HoughLinesBinary(dblRhoRes, dblThetaRes, intThreshold, dblMinLineWidth, dblMinGapBetweenLines)[0];
//foreach (LineSegment2D line in lines)
//{
// imgLines.Draw(line, new Bgr(Color.DarkGreen), 2);
// imageFrame.Draw(line, new Bgr(Color.DarkGreen), 2);
//}
//imageBox4.Image = imgLines;
//VectorOfVectorOfPointF contours = new VectorOfVectorOfPointF();
//Mat hierarchy = null;
//CvInvoke.FindContours(imgCanny, contours, hierarchy, Emgu.CV.CvEnum.RetrType.List, Emgu.CV.CvEnum.ChainApproxMethod.ChainCode);
////Contour<Point> contours = imgCanny.FindContours();
//List<MCvBox2D> lstRectangles = new List<MCvBox2D>();
//List<Contour<Point>> lstPoluhons = new List<Contour<Point>>();
//while (contours != null)
//{
// Contour<Point> contour = contours.ApproxPoly(10.0);
// if (contour.Area > 250.0)
// {
// if (contour.Total == 4)
// {
// Point[] ptPoints = contour.ToArray();
// Boolean blnIsRectangle = true;
// LineSegment2D[] ls2dEdges = PointCollection.PolyLine(ptPoints, true);
// for (int i = 0; i < ls2dEdges.Length - 1; i++)
// {
// Double dblAngle = Math.Abs(ls2dEdges[(i + 1) % ls2dEdges.Length].GetExteriorAngleDegree(ls2dEdges[i]));
// if (dblAngle < 80.0 || dblAngle > 100.0)
// {
// blnIsRectangle = false;
// }
// }
// if (blnIsRectangle)
// lstRectangles.Add(contour.GetMinAreaRect());
// }
// }
// contours = contours.HNext;
//}
//foreach (MCvBox2D rect in lstRectangles)
//{
// imgTrisRectsPolys.Draw(rect, new Bgr(Color.Blue), 2);
// if (chbDrawTrianglesAndPolygansOnOriginalImage.Checked == true)
// {
// imgOriginal.Draw(rect, new Bgr(Color.Blue), 2);
// }
//}
//CvInvoke.CvtColor(CameraFeed, HSV, Emgu.CV.CvEnum.ColorConversion.Bgr2Hsv);
//CvInvoke.InRange(HSV, new MCvScalar(Bmin, Gmin, Rmin), new MCvScalar(Bmax, Gmax, Rmax), Threshold);
//CvInvoke.Mor
//histogramBoxCapture. = CameraFeed;
//var imageFrame = Frame.ToImage<Bgr, byte>();
}
catch (Exception ex)
{
}
Busy = false;
}
