public double GetOrientation(SpeededUpRobustFeaturePoint point)
{
// Get rounded feature point data
int x = (int)Math.Round(point.X, 0);
int y = (int)Math.Round(point.Y, 0);
int s = (int)Math.Round(point.Scale, 0);
// Get the orientation (for rotation invariance)
return(GetOrientation(x, y, s));
}
public void Compute(SpeededUpRobustFeaturePoint point)
{
int x = (int)System.Math.Round(point.X, 0);
int y = (int)System.Math.Round(point.Y, 0);
int s = (int)System.Math.Round(point.Scale, 0);
if (_invariant)
{
// Get the orientation (for rotation invariance)
point.Orientation = this.GetOrientation(x, y, s);
}
// Extract SURF descriptor
point.Descriptor = this.GetDescriptor(x, y, s, point.Orientation);
}