public static Mat vector_KeyPoint_to_Mat(List <KeyPoint> kps)
{
Mat res;
int count = (kps != null) ? kps.Count : 0;
if (count > 0)
{
res = new Mat(count, 1, CvType.CV_64FC(7));
double[] buff = new double[count * 7];
for (int i = 0; i < count; i++)
{
KeyPoint kp = kps [i];
buff [7 * i] = kp.pt.x;
buff [7 * i + 1] = kp.pt.y;
buff [7 * i + 2] = kp.size;
buff [7 * i + 3] = kp.angle;
buff [7 * i + 4] = kp.response;
buff [7 * i + 5] = kp.octave;
buff [7 * i + 6] = kp.class_id;
}
res.put(0, 0, buff);
}
else
{
res = new Mat();
}
return(res);
}
public static void Mat_to_vector_KeyPoint(Mat m, List <KeyPoint> kps)
{
if (m != null)
{
m.ThrowIfDisposed();
}
if (kps == null)
{
throw new CvException("Output List can't be null");
}
int count = m.rows();
if (CvType.CV_64FC(7) != m.type() || m.cols() != 1)
{
throw new CvException(
"CvType.CV_64FC(7) != m.type() || m.cols()!=1\n" + m);
}
kps.Clear();
double[] buff = new double[7 * count];
m.get(0, 0, buff);
for (int i = 0; i < count; i++)
{
kps.Add(new KeyPoint((float)buff [7 * i], (float)buff [7 * i + 1], (float)buff [7 * i + 2], (float)buff [7 * i + 3],
(float)buff [7 * i + 4], (int)buff [7 * i + 5], (int)buff [7 * i + 6]));
}
}
public void alloc(int elemNumber)
{
if (elemNumber > 0)
{
base.create(elemNumber, 1, CvType.makeType(_depth, _channels));
}
}