// On Filters->BinaryDilatation3x3
private void BinaryDilatationFiltersItem_Click(object sender, EventArgs e)
{
ApplyFilter(Grayscale.CommonAlgorithms.BT709);
// ApplyFilter(new SobelEdgeDetector());
BinaryDilatation3x3 filter = new BinaryDilatation3x3();
// apply the filter
filter.ApplyInPlace(filteredImage);
BinaryDilatationFiltersItem.Checked= true;
}
/// <summary>
/// Initializes a new instance of the <see cref="T:System.Object"/> class.
/// </summary>
/// <remarks></remarks>
public TileOCR(string trainingPath)
{
classifier = new KNearestClassifier(1, Metric.EuclideanDistance, WeightMode.InverseDistance);
training = LoadInstancesFromBitmaps(trainingPath);
classifier.Train(training);
results = new List<OCRResult>();
grayscale = new Grayscale(0, 0.85, 0.15);
invert = new Invert();
resize = new ResizeNearestNeighbor(32, 32);
floodFill = new PointedColorFloodFill(Color.Black);
dilate = new BinaryDilatation3x3();
blobCounter = new BlobCounter();
blobCounter.FilterBlobs = true;
blobCounter.MinWidth = 4;
blobCounter.MinHeight = 14;
blobCounter.MaxWidth = 30;
blobCounter.MaxHeight = 30;
blobCounter.ObjectsOrder = ObjectsOrder.XY;
threshold = new BradleyLocalThresholding();
threshold.PixelBrightnessDifferenceLimit = 0;
//Threshold.WindowSize = 20;
threshold.WindowSize = 24;
}