private Contour[] Sort(Contour[] contours, GrayscaleProcessor gpSobel, GrayscaleProcessor gpH, float targetArea)
{
List <ContourDataComposite <double> > valuedContours = new List <ContourDataComposite <double> >();
Parallel.For(0, contours.Length, i =>
{
Contour c = contours[i];
double value = this.GetContourValue(c, gpSobel, gpH, targetArea);
if (value <= 0)
{
return;
}
lock (valuedContours)
{
valuedContours.Add(new ContourDataComposite <double>(c, value));
}
});
valuedContours.Sort(delegate(ContourDataComposite <double> c1, ContourDataComposite <double> c2)
{
if (c1.Data > c2.Data)
{
return(-1);
}
if (c1.Data < c2.Data)
{
return(1);
}
return(0);
});
contours = new Contour[valuedContours.Count];
for (int i = 0; i < valuedContours.Count; i++)
{
contours[i] = valuedContours[i].Contour;
}
return(contours);
}
private double GetContourValue(Contour c, GrayscaleProcessor gpSobel, GrayscaleProcessor gpH, float targetArea)
{
double h = MeanIntensityOnContour.GetValue(c, gpH);
ContourProperties cp = ContourProperties.FromContour(c);
float area = Math.Min(cp.Area, targetArea) / targetArea;
if (cp.Convexity < 0.9 && cp.Area < targetArea)
{
area = 1F / targetArea;
}
float convexity = cp.Convexity * cp.Convexity;
double color = h / 255.0;
return(color * area * convexity * ContourValue.GetValue(c, gpSobel));
}
private ObjectLayer CreateLayer(int width, int height, Contour[] contours)
{
Map map = new Map(width, height);
UInt32 id = 1;
for (int i = 0; i < contours.Length; i++)
{
Contour c = contours[i];
if (c.Length < MIN_CONTOURLENGTH)
{
continue;
}
c.Fill(map, id, false);
id++;
}
return(new ConnectedComponentCollector().Execute(map));
}