Merge pull request #13045 from LaurentBerger:kmeansdoc

typo in kmeans doc

modules/core/include/opencv2/core.hpp

@@ -2962,7 +2962,7 @@ An example on K-means clustering
 /** @brief Finds centers of clusters and groups input samples around the clusters.
 
 The function kmeans implements a k-means algorithm that finds the centers of cluster_count clusters
-and groups the input samples around the clusters. As an output, \f$\texttt{labels}_i\f$ contains a
+and groups the input samples around the clusters. As an output, \f$\texttt{bestLabels}_i\f$ contains a
 0-based cluster index for the sample stored in the \f$i^{th}\f$ row of the samples matrix.
 
 @note