private void GenerateHistogramData()
{
if (this.Image != null)
{
Emgu.CV.Image <Bgr, byte> img = new Emgu.CV.Image <Bgr, byte>(this.Image as Bitmap);
Emgu.CV.Image <Gray, byte>[] channels = img.Split();
List <Color> colors = new List <Color>()
{
Color.FromArgb(128, 0, 0, 255),
Color.FromArgb(128, 0, 255, 0),
Color.FromArgb(128, 255, 0, 0),
};
for (int c = 0; c < channels.Length; c++)
{
Emgu.CV.DenseHistogram histo = new Emgu.CV.DenseHistogram(256, new RangeF(0, 255));
histo.Calculate <byte>(new Emgu.CV.Image <Gray, byte>[] { channels[c] }, false, null);
float[] values = histo.GetBinValues();
Series channelSeries = new Series()
{
ChartType = SeriesChartType.Column,
Color = colors[c],
};
for (int i = 0; i < 256; i++)
{
channelSeries.Points.AddXY(i, values[i]);
}
VerticalLineAnnotation va = new VerticalLineAnnotation()
{
LineColor = colors[c],
LineWidth = 3,
AxisX = chartHisto.ChartAreas[0].AxisX,
AxisY = chartHisto.ChartAreas[0].AxisY,
AllowMoving = true,
IsInfinitive = true,
ClipToChartArea = chartHisto.ChartAreas[0].Name,
AllowAnchorMoving = false,
};
this.chartHisto.Annotations.Add(va);
this.chartHisto.Series.Add(channelSeries);
}
}
}
public void Action(ScriptState state)
{
state.Image.ROI = ScriptState.FieldRectangle;
var i = ToGray(state.Image);
var ok = false;
for (int y = 0; y < ScriptState.FieldSize.Height; ++y)
for (int x = 0; x < ScriptState.FieldSize.Width; ++x)
{
i.ROI = new Rectangle(new Point(x * 50, y * 50), new Size(50, 50));
var h = new Emgu.CV.DenseHistogram(256, new RangeF(0f, 255f));
h.Calculate(new[] { i }, false, null);
var valHist = new float[256];
h.MatND.ManagedArray.CopyTo(valHist, 0);
if (valHist[0] < 1000)
{
for (int n = 0; n < nums.Length; ++n)
{
if (nums[n] != null)
{
var r = i.Find(nums[n], Point.Empty);
if (!r.IsEmpty)
{
state[x, y].Number = n >= 0 && n <= 9 ? n : n; // !!!! случай флага и незанятой клетки
ok = true;
}
}
}
}
else state[x, y].Number = -1;
}
if (ok) state.ActionDone = true;
}
