private void skeletonizeToolStripMenuItem_Click(object sender, EventArgs e)
{
Emgu.CV.Image <Emgu.CV.Structure.Gray, byte> img1 = new Image <Emgu.CV.Structure.Gray, byte>(img.ToBitmap()).Resize(500, 500, true);
Emgu.CV.Image <Gray, byte> gray = img1.Convert <Gray, byte>(); //convert to grayscale
Emgu.CV.Image <Gray, byte> binary = gray.ThresholdBinary(new Gray(75), new Gray(255)); //perform binarization
IntPtr dsti = Emgu.CV.CvInvoke.cvCreateImage(Emgu.CV.CvInvoke.cvGetSize(binary), Emgu.CV.CvEnum.IPL_DEPTH.IPL_DEPTH_32F, 1);
Emgu.CV.CvInvoke.cvDistTransform(binary, dsti, Emgu.CV.CvEnum.DIST_TYPE.CV_DIST_L2, 5, null, IntPtr.Zero);
CvInvoke.cvLaplace(dsti, dsti, 7);
CvInvoke.cvThreshold(dsti, dsti, 3, 255, Emgu.CV.CvEnum.THRESH.CV_THRESH_BINARY);
Image <Gray, byte> fu = new Image <Gray, byte>(binary.Width, binary.Height);
CvInvoke.cvConvertScaleAbs(binary.Ptr, fu.Ptr, 2, 1.5);
CvInvoke.cvNot(fu.Ptr, fu.Ptr);
fu._Dilate(1);
fu._Erode(1);
showimage(fu);
}
public int apply(string fileName, string output)
{
int counter = 0;
Emgu.CV.Image<Bgr, Byte> imgS = new Emgu.CV.Image<Bgr, Byte>(fileName);
Emgu.CV.Image<Gray, Byte> img = new Emgu.CV.Image<Gray, Byte>(fileName);
//Emgu.CV.Image<Gray, Byte> imgGray = new Image<Gray, byte>(img.Width, img.Height);
//CvInvoke.cvCvtColor(img, imgGray, COLOR_CONVERSION.BGR2GRAY);
int thresh = 1;
int max_thresh = 255;
img = img.ThresholdBinary(new Gray(thresh), new Gray(max_thresh));
img.Save(output.Replace(".", "_binary."));
Contour<Point> contur = img.FindContours(Emgu.CV.CvEnum.CHAIN_APPROX_METHOD.CV_CHAIN_APPROX_SIMPLE, Emgu.CV.CvEnum.RETR_TYPE.CV_RETR_CCOMP);
Emgu.CV.CvInvoke.cvDrawContours(imgS, contur, new MCvScalar(0, 0, 255), new MCvScalar(0, 0, 255), 1, 1, LINE_TYPE.EIGHT_CONNECTED, new Point(0, 0));
contur = img.FindContours(Emgu.CV.CvEnum.CHAIN_APPROX_METHOD.CV_CHAIN_APPROX_SIMPLE, Emgu.CV.CvEnum.RETR_TYPE.CV_RETR_CCOMP);
while (contur != null && contur.HNext != null)
{
if (counter == 0) { counter++; }
contur = contur.HNext;
counter++;
}
MCvFont font = new MCvFont(Emgu.CV.CvEnum.FONT.CV_FONT_HERSHEY_SIMPLEX, 0.8f, 0.8f);
MCvScalar color = new MCvScalar(255, 255, 255);
CvInvoke.cvPutText(imgS, "counter:" + counter, new Point(10, 20), ref font, color);
imgS.Save(output);
return counter;
}
