// Training of the shape model and write the serialized item to a file
// stream
private void CreateBtn_Click(object sender, System.EventArgs e)
{
HTuple Names;
HRegion Coin;
HShapeModel Model;
TrainBtn.Enabled = false;
Window.SetColor("red");
Window.SetDraw("margin");
Window.SetLineWidth(1);
Names = "german";
Names.Append("italian");
Names.Append("greek");
Names.Append("spanish");
//Write a serialized item of type tuple to a file
Stream s = File.OpenWrite("serialized_shape_model");
Names.Serialize(s);
// Note: The binary layout of serialized HALCON objects is determined by
// the native HALCON libary. You could also package this blob together with
// other .NET objects into a formatted stream, e.g. by using
//
// BinaryFormatter f = new BinaryFormatter();
// f.Serialize(s, Names);
//
// When using only HALCON objects without extra formatting, the streamed
// data is interchangable with HDevelop or HALCON/C++.
//Train shape models
for (int i = 0; i < 4; i++)
{
MatchingLabel.Text = "Train coin " + (i + 1) + "/4 (" + Names[i] +
") and serialize resulting shape model to a" +
" file...";
MatchingLabel.Refresh();
Img = new HImage("coins/20cent_" + Names[i]);
Window.DispObj(Img);
HRegion Region = Img.Threshold(70.0, 255.0);
HRegion ConnectedRegions = Region.Connection();
HRegion SelectedRegions = ConnectedRegions.SelectShapeStd("max_area", 0);
HRegion RegionTrans = SelectedRegions.ShapeTrans("convex");
Coin = new HRegion(RegionTrans.Row, RegionTrans.Column, 120);
int Contrast = 20;
HTuple HysteresisContrast;
HysteresisContrast = (Contrast / 2.0);
HysteresisContrast.Append(Contrast + 6.0);
HysteresisContrast.Append(10.0);
HImage ImgReduced = Img.ReduceDomain(Coin);
//Called during the test phase to see if contrast is selected correctly
Model = new HShapeModel(ImgReduced, new HTuple(0), 0.0,
new HTuple(360.0).TupleRad(), new HTuple(0),
new HTuple("no_pregeneration"), "ignore_local_polarity",
HysteresisContrast, new HTuple(5));
//Write a serialized item of type shape based model to a file
Model.Serialize(s);
// Destroy shape based model and objects
Coin.Dispose();
Model.Dispose();
Img.Dispose();
ImgReduced.Dispose();
Region.Dispose();
SelectedRegions.Dispose();
RegionTrans.Dispose();
ImgReduced.Dispose();
HSystem.WaitSeconds(0.4);
}
s.Close();
MatchingLabel.Text = "Ready to find coins";
StopBtn.Enabled = false;
StartBtn.Enabled = true;
}
