/// <summary>
///
/// </summary>
/// <param name="clusterCount"></param>
/// <param name="termcrit"></param>
/// <param name="attempts"></param>
/// <param name="flags"></param>
public BOWKMeansTrainer(int clusterCount, TermCriteria?termcrit = null,
int attempts = 3, KMeansFlags flags = KMeansFlags.PpCenters)
{
var termCritValue = termcrit.GetValueOrDefault(new TermCriteria());
ptr = NativeMethods.features2d_BOWKMeansTrainer_new(clusterCount, termCritValue, attempts, (int)flags);
}
internal static extern int cvKMeans2(
Arr samples,
int cluster_count,
Arr labels,
TermCriteria termcrit,
int attempts,
ref ulong rng,
KMeansFlags flags,
Arr _centers,
out double compactness);
/// <summary>
/// clusters the input data using k-Means algorithm
/// </summary>
/// <param name="data"></param>
/// <param name="k"></param>
/// <param name="bestLabels"></param>
/// <param name="criteria"></param>
/// <param name="attempts"></param>
/// <param name="flags"></param>
/// <param name="centers"></param>
/// <returns></returns>
public static double Kmeans(InputArray data, int k, InputOutputArray bestLabels,
TermCriteria criteria, int attempts, KMeansFlags flags, OutputArray centers = null)
{
if (data == null)
throw new ArgumentNullException("data");
if (bestLabels == null)
throw new ArgumentNullException("bestLabels");
data.ThrowIfDisposed();
bestLabels.ThrowIfDisposed();
double ret = NativeMethods.core_kmeans(data.CvPtr, k, bestLabels.CvPtr, criteria, attempts, (int)flags, ToPtr(centers));
bestLabels.Fix();
if(centers != null)
centers.Fix();
GC.KeepAlive(data);
return ret;
}
/// <summary>
///
/// </summary>
/// <param name="clusterCount"></param>
/// <param name="termcrit"></param>
/// <param name="attempts"></param>
/// <param name="flags"></param>
public BOWKMeansTrainer(int clusterCount, TermCriteria? termcrit = null,
int attempts = 3, KMeansFlags flags = KMeansFlags.PpCenters)
{
var termCritValue = termcrit.GetValueOrDefault(new TermCriteria());
ptr = NativeMethods.features2d_BOWKMeansTrainer_new(clusterCount, termCritValue, attempts, (int)flags);
}
