public static void DetectBlobEllipses(string myFile)
{
var grayImage = new Image <Gray, byte>(myFile);
Mat imageCopy = Emgu.CV.CvInvoke.Imread(myFile, Emgu.CV.CvEnum.ImreadModes.Color);
//grayImage._Not();
var grayImageCopy = grayImage.Clone();
var res = CvInvoke.Threshold(grayImage, grayImageCopy, 170, 255, Emgu.CV.CvEnum.ThresholdType.Binary);
CvInvoke.Imwrite(Path.GetDirectoryName(myFile) + "\\" + Path.GetFileNameWithoutExtension(myFile) + "-threshold" + Path.GetExtension(myFile), grayImageCopy, new KeyValuePair <Emgu.CV.CvEnum.ImwriteFlags, int>(Emgu.CV.CvEnum.ImwriteFlags.JpegQuality, 95));
//grayImageCopy._Not();
// Set our filtering parameters
// Initialize parameter settiing using cv2.SimpleBlobDetector
var paramsx = new Emgu.CV.Features2D.SimpleBlobDetectorParams();
// Set Area filtering parameters
paramsx.FilterByArea = true;
paramsx.MinArea = 1000;
// Set Circularity filtering parameters
paramsx.FilterByCircularity = false;
paramsx.MinCircularity = 0.9f;
// Set Convexity filtering parameters
paramsx.FilterByConvexity = false;
paramsx.MinConvexity = 0.2f;
// Set inertia filtering parameters
paramsx.FilterByInertia = false;
paramsx.MinInertiaRatio = 0.01f;
// Create a detector with the parameters
var detector = new Emgu.CV.Features2D.SimpleBlobDetector(paramsx);
// Detect blobs
var keypoints = detector.Detect(grayImageCopy);
var keyPoints = new Emgu.CV.Util.VectorOfKeyPoint(keypoints);
// Draw blobs on our image as red circles
var blank = imageCopy.Clone();
Emgu.CV.Features2D.Features2DToolbox.DrawKeypoints(imageCopy, keyPoints, blank, new Bgr(System.Drawing.Color.Red), Emgu.CV.Features2D.Features2DToolbox.KeypointDrawType.DrawRichKeypoints);
var number_of_blobs = keyPoints.Size;
CvInvoke.Imwrite(Path.GetDirectoryName(myFile) + "\\" + Path.GetFileNameWithoutExtension(myFile) + "-copy" + Path.GetExtension(myFile), blank, new KeyValuePair <Emgu.CV.CvEnum.ImwriteFlags, int>(Emgu.CV.CvEnum.ImwriteFlags.JpegQuality, 95));
}
private void Circles(object sender, RoutedEventArgs e)
{
allPonits = new List <System.Drawing.PointF[]>();
foreach (var i in imageList)
{
Emgu.CV.Features2D.SimpleBlobDetectorParams simpleBlobDetectorParams = new Emgu.CV.Features2D.SimpleBlobDetectorParams();
simpleBlobDetectorParams.MaxArea = 300000;
simpleBlobDetectorParams.FilterByColor = true;
simpleBlobDetectorParams.MinThreshold = 100;
simpleBlobDetectorParams.MaxThreshold = 150;
simpleBlobDetectorParams.ThresholdStep = 10;
simpleBlobDetectorParams.MinArea = 1000;
simpleBlobDetectorParams.FilterByArea = true;
simpleBlobDetectorParams.MinDistBetweenBlobs = 10;
var blobs = new Emgu.CV.Features2D.SimpleBlobDetector(simpleBlobDetectorParams).Detect(i);
var points = Emgu.CV.CvInvoke.FindCirclesGrid(i.Convert <Gray, byte>(), new System.Drawing.Size(4, 11), (Emgu.CV.CvEnum.CalibCgType) 6, new Emgu.CV.Features2D.SimpleBlobDetector(simpleBlobDetectorParams));
if (points != null)
{
allPonits.Add(points);
}
}
calcPosition();
}