private List <СharacteristicPoint> DetectLocalMaximumPoints(СharacteristicPoint[,] responces)
{
List <СharacteristicPoint> filteredPoints = new List <СharacteristicPoint>();
try
{
ApertureEnumerator enumerator = new ApertureEnumerator(responces, filteredApertureSize);
while (enumerator.MoveNext())
{
СharacteristicPoint localMaxResponcePoint =
enumerator.Current.OrderByDescending(e => e.ResponseAngle).First();
if (localMaxResponcePoint.ResponseAngle > default(double))
{
filteredPoints.Add(localMaxResponcePoint);
}
}
}
catch (Exception ex)
{
Log.Current.Error(ex);
throw;
}
return(filteredPoints);
}
public СharacteristicPoint[] Detect(LockableBitmap source)
{
InitializeGradients(source);
СharacteristicPoint[,] responces = new СharacteristicPoint[source.Width, source.Height];
for (int y = 0; y < source.Height; y++)
{
for (int x = 0; x < source.Width; x++)
{
double response = responseAngle.Calculate(dfx[x, y], dfy[x, y], dfxy[x, y]);
response = response > threshold ? response : default(double);
responces[x, y] = new СharacteristicPoint(
new Point(x, y),
response);
}
}
List <СharacteristicPoint> filteredPoints = DetectLocalMaximumPoints(responces);
return(filteredPoints.ToArray());
}
