public FeatureSet(FeatureSet other, ICriteria criteria)
{
var copy = new FeatureSet(other);
this.KeyPoints = copy.KeyPoints;
this.Descriptors = copy.Descriptors;
this.Allocated = copy.Allocated;
if (criteria == null)
{
return;
}
var keypoints = new List <MKeyPoint>(this.KeyPoints.ToArray());
var descriptors = new List <Matrix <float> >();
int i = 0;
while (i < keypoints.Count)
{
if (criteria.Accept(this, i))
{
descriptors.Add(this.Descriptors.GetRow(i));
i++;
}
else
{
keypoints.RemoveAt(i);
}
}
this.KeyPoints.Clear();
this.KeyPoints.Push(keypoints.ToArray());
var newDescriptors = new Matrix <float>(descriptors.Count, this.Descriptors.Cols);
for (int j = 0; j < descriptors.Count; j++)
{
for (int col = 0; col < this.Descriptors.Cols; col++)
{
this.Descriptors[j, col] = descriptors[j][0, col];
}
}
this.Descriptors = newDescriptors;
}