public DetectorResult Process(Image <Bgr, byte> rawFrame, Image <Gray, byte> grayFrame)
{
Image <Bgr, byte> contourImage = null;
if (rawFrame != null)
{
List <Point[]> polygon = new List <Point[]>(); // to draw the perimeter
Image <Gray, byte> gray = rawFrame.Convert <Gray, byte>(); // convert source to gray
Image <Gray, byte> thresh = gray.PyrDown().PyrUp(); // attempt to make edges more distinct?
using (Image <Gray, Byte> mask = new Image <Gray, byte>(thresh.Size))
using (Image <Gray, byte> cannyImg = thresh.Canny(new Gray(10), new Gray(50)))
using (Image <Gray, byte> dilateImg = cannyImg.Dilate(1))
using (MemStorage stor = new MemStorage())
{
mask.SetValue(255.0);
for (
Contour <Point> contours = dilateImg.FindContours(
Emgu.CV.CvEnum.CHAIN_APPROX_METHOD.CV_CHAIN_APPROX_SIMPLE,
Emgu.CV.CvEnum.RETR_TYPE.CV_RETR_EXTERNAL,
stor);
contours != null; contours = contours.HNext)
{
Rectangle rect = contours.BoundingRectangle;
int area = rect.Height * rect.Width;
if (area > 30000)
{
rect.X -= 1; rect.Y -= 1; rect.Width += 2; rect.Height += 2;
rect.Intersect(gray.ROI);
mask.Draw(rect, new Gray(0.0), -1);
polygon.Add(contours.ToArray());
}
}
thresh.SetValue(0, mask);
}
contourImage = new Image <Bgr, byte>(gray.Bitmap);
contourImage.CopyBlank();
foreach (Point[] points in polygon)
{
contourImage.DrawPolyline(points, true, new Bgr(Color.Red), 2);
}
}
var result = new DetectorResult()
{
Confidence = 100,
GrayImage = grayFrame,
ProcessedImage = contourImage,
RawImage = rawFrame
};
return(result);
}
public DetectorResult Process(Image<Bgr, byte> rawFrame, Image<Gray, byte> grayFrame)
{
Image<Bgr, byte> contourImage = null;
if (rawFrame != null)
{
List<Point[]> polygon = new List<Point[]>(); // to draw the perimeter
Image<Gray, byte> gray = rawFrame.Convert<Gray, byte>(); // convert source to gray
Image<Gray, byte> thresh = gray.PyrDown().PyrUp(); // attempt to make edges more distinct?
using (Image<Gray, Byte> mask = new Image<Gray, byte>(thresh.Size))
using (Image<Gray, byte> cannyImg = thresh.Canny(new Gray(10), new Gray(50)))
using (Image<Gray, byte> dilateImg = cannyImg.Dilate(1))
using (MemStorage stor = new MemStorage())
{
mask.SetValue(255.0);
for (
Contour<Point> contours = dilateImg.FindContours(
Emgu.CV.CvEnum.CHAIN_APPROX_METHOD.CV_CHAIN_APPROX_SIMPLE,
Emgu.CV.CvEnum.RETR_TYPE.CV_RETR_EXTERNAL,
stor);
contours != null; contours = contours.HNext)
{
Rectangle rect = contours.BoundingRectangle;
int area = rect.Height * rect.Width;
if (area > 30000)
{
rect.X -= 1; rect.Y -= 1; rect.Width += 2; rect.Height += 2;
rect.Intersect(gray.ROI);
mask.Draw(rect, new Gray(0.0), -1);
polygon.Add(contours.ToArray());
}
}
thresh.SetValue(0, mask);
}
contourImage = new Image<Bgr, byte>(gray.Bitmap);
contourImage.CopyBlank();
foreach (Point[] points in polygon)
contourImage.DrawPolyline(points, true, new Bgr(Color.Red), 2);
}
var result = new DetectorResult()
{
Confidence = 100,
GrayImage = grayFrame,
ProcessedImage = contourImage,
RawImage = rawFrame
};
return result;
}
