public float Compute(ImageDataPoint <float> point)
{
if (point.ImageID != _currentID)
{
_currentID = point.ImageID;
if (point.Image.IsIntegral || DecisionTree <ImageDataPoint <float>, float[]> .IsBuilding)
{
_integralImage = new FloatArrayHandler(point.Image.RawArray, true);
}
else
{
_integralImage = IntegralImage.ComputeFloat <FloatArrayHandler>(point.Image);
}
}
int row = point.Row;
int column = point.Column;
IMultichannelImage <float> image = point.Image;
float sum = 0;
for (int i = 0; i < _count; i++)
{
if (i % 2 == 0)
{
sum += _integralImage.ComputeRectangleSum(row, column, _channels[i], _rectangles[i]);
}
else
{
sum -= _integralImage.ComputeRectangleSum(row, column, _channels[i], _rectangles[i]);
}
}
Debug.Assert(!float.IsNaN(sum), "Rectangle sum is NaN!");
return(sum);
}
