skimage2.graph.merge_hierarchical#

skimage2.graph.merge_hierarchical(labels, rag, thresh, rag_copy, in_place_merge, merge_func, weight_func)[source]#

Perform hierarchical merging of a RAG.

Greedily merges the most similar pair of nodes until no edges lower than thresh remain.

Parameters:

labelsndarray: The array of labels.
ragRAG: The Region Adjacency Graph.
threshfloat: Regions connected by an edge with weight smaller than thresh are merged.
rag_copybool: If set, the RAG copied before modifying.
in_place_mergebool: If set, the nodes are merged in place. Otherwise, a new node is created for each merge..
merge_funccallable: This function is called before merging two nodes. For the RAG graph while merging src and dst, it is called as follows merge_func(graph, src, dst).
weight_funccallable: The function to compute the new weights of the nodes adjacent to the merged node. This is directly supplied as the argument weight_func to merge_nodes.

Returns: