private double ShortestDistance(MyConnectedComponentsAnalysisFast.MyBlob char_blob)
{
double min_distance = Double.MaxValue;
Point a = char_blob.mass_center;
for (int i = 0; i < _char_list.Count; i++)
{
Point b = _char_list[i].mass_center;
double distance = Math.Sqrt((a.X - b.X) * (a.X - b.X) + (a.Y - b.Y) * (a.Y - b.Y));
if (distance < min_distance)
min_distance = distance;
}
return min_distance;
}
public void AddChar(MyConnectedComponentsAnalysisFast.MyBlob char_blob)
{
if (_char_list.Contains(char_blob)) return;
for (int i = 0; i < _char_list.Count; i++)
if (Distance(_char_list[i].mass_center, char_blob.mass_center) < 3)
return;
_mean_height = (_mean_height * _char_list.Count + char_blob.bbx.Height);
_mean_width = (_mean_width * _char_list.Count + char_blob.bbx.Width);
_char_list.Add(char_blob);
_mean_height /= (double)_char_list.Count;
_mean_width /= (double)_char_list.Count;
// Extend bbx
if (_bbx.Width == 0)
_bbx = char_blob.bbx;
else
{
int x = _bbx.X, y = _bbx.Y, xx = _bbx.X + _bbx.Width - 1, yy = _bbx.Y + _bbx.Height - 1;
int x1 = char_blob.bbx.X, y1 = char_blob.bbx.Y, xx1 = char_blob.bbx.X + char_blob.bbx.Width - 1, yy1 = char_blob.bbx.Y + char_blob.bbx.Height - 1;
int x2, y2, xx2, yy2;
if (x < x1) x2 = x;
else x2 = x1;
if (y < y1) y2 = y;
else y2 = y1;
if (xx < xx1) xx2 = xx1;
else xx2 = xx;
if (yy < yy1) yy2 = yy1;
else yy2 = yy;
_bbx.X = x2; _bbx.Y = y2;
_bbx.Width = xx2 - x2 + 1;
_bbx.Height = yy2 - y2 + 1;
}
}