private void FilterMinimumDensityandRatio()
{
List <Blob> tmpBlobs;
Blob tmpBlob;
tmpBlobs = new List <Blob>();
pBlue.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash;
//FIRST FILTERS OF PROPORTIONS FOR SQUARED BLOBS
for (int i = 0; i < BlobFinder.Count; i++)
{
tmpBlob = BlobFinder.Blobs[i];
if (tmpBlob.Density < 0.25)
{
continue;
}
if (tmpBlob.Ratio < 0.15)
{
continue;
}
tmpBlobs.Add(tmpBlob);
}
BlobFinder.Clear();
BlobFinder.Blobs.AddRange(tmpBlobs.OrderBy(b => b.Centroid2Origin).ToList());
}
private List <Triangle> FindTriangles()
{
Blob one, two;
double distance;
List <Triangle> triangles;
List <Blob> tmpBlobs;
triangles = new List <Triangle>();
tmpBlobs = new List <Blob>();
Triangle triangle;
for (int index = 0; index < BlobFinder.Count; index++)
{
one = BlobFinder.Blobs[index];
triangle = new Triangle(one, Color.Red);
tmpBlobs.Add(one);
for (int next = index + 1; next < BlobFinder.Count; next++)
{
two = BlobFinder.Blobs[next];
distance = Distance(one.Centroid, two.Centroid);
if ((distance / ((one.AvgSize + two.AvgSize) / 2)) > 10)//works
{
next = BlobFinder.Count;
BlobFinder.Remove(one);
tmpBlobs.Remove(one);
index--;
}
else
{
tmpBlobs.Add(two);
triangle.points.Add(two);
BlobFinder.Remove(two);
next--;
if (triangle.points.Count > 2)
{
triangles.Add(triangle);
next = BlobFinder.Count;
}
}
}
}
BlobFinder.Clear();
BlobFinder.Blobs.AddRange(tmpBlobs.ToList());
return(triangles);
}
private void FindBlobPairs()
{
List <Blob> tmpBlobs;
float maxR, minR;
Blob one, two, tmp;
Point p1, p2, p3, p4, midAB, midAC;
tmpBlobs = new List <Blob>();
maxR = 0;
minR = 1000;
//FINDS PAIRS OF BLOBS ONE INSIDE ANOTHER WITH CLOSE CENTROIDS
for (int index = 0; index < BlobFinder.Count - 1; index++)
{
one = BlobFinder.Blobs[index];
for (int t = index + 1; t < BlobFinder.Count; t++)
{
two = BlobFinder.Blobs[t];
if (Math.Abs(one.Centroid2Origin - two.Centroid2Origin) > one.Diagonal / 3)
{
t = BlobFinder.Count;
BlobFinder.Blobs.Remove(one);
index--;
continue;
}//*/
if (one.Width < two.Width)
{
tmp = one;
one = two;
two = tmp;
}
midAB = MidPoint(one.A, one.B);
midAC = MidPoint(one.A, one.C);
p1 = MidPoint(one.A, midAB);
p2 = MidPoint(midAB, one.B);
p3 = MidPoint(one.A, midAC);
p4 = MidPoint(midAC, one.C);
if (
(two.Centroid.X > p1.X) && (two.Centroid.X < p2.X) &&
(two.Centroid.Y > p3.Y) && (two.Centroid.Y < p4.Y) &&
(one.Density / two.Density) < 1.3 && (two.Density / one.Density) > 1 &&
(one.Width / two.Width) > 1.5 && (one.Width / two.Width) < 3.5
)
{
tmpBlobs.Add(two);
if (two.Ratio > maxR)
{
maxR = two.Ratio;
}
if (two.Ratio < minR)
{
minR = two.Ratio;
}
BlobFinder.Blobs.Remove(one);
BlobFinder.Blobs.Remove(two);
index--;
t = BlobFinder.Count;
}
else
{
one = BlobFinder.Blobs[index];
}
}
}
BlobFinder.Clear();
BlobFinder.Blobs.AddRange(tmpBlobs.OrderBy(b => b.Centroid2Origin).ToList());
}