o ^i@s4ddlZddlZddZddZddZdd ZdS) Nc Csx||D]4}|||}zd|dd<t|||Wn ty$Ynw|d}|||dg}||d<t||qdS)aHandles validation and invalidation of edges incident to a node. This function invalidates all existing edges incident on `node` and inserts new items in `heap_list` updated with the valid weights. rag : RAG The Region Adjacency Graph. node : int The id of the node whose incident edges are to be validated/invalidated . heap_list : list The list containing the existing heap of edges. F heap itemweightTN) neighbors_invalidate_edgeKeyErrorheapqheappush)ragnode heap_listnbrdatawt heap_itemrU/var/www/html/RAG/RAG_venv/lib/python3.10/site-packages/skimage/graph/_graph_merge.py_revalidate_node_edgess    rcCs`|||j||j|||D]}|||d}|||d|iq||dS)z)Rename `node_id` in `graph` to `copy_id`.rN)_add_node_silentnodesupdateradd_edge remove_node)graphnode_idcopy_idr rrrr _rename_node)s rcCsd|||dd<dS)z*Invalidates the edge (n1, n2) in the heap.FrrNr)rn1n2rrrr6srcCsx|r|}g}|jddD]\}} } | d} | || dg} t|| | | d<qt|dkr|dd|krt|\} }} }|r||D]}t|||qF|| D]}t|| |qT|so|}t || |||}}n|| }}||||| |||}t |||t|dkr|dd|ks6t |d}t|jddD]\}\}}|dD]}|||<qq||S)a1Perform hierarchical merging of a RAG. Greedily merges the most similar pair of nodes until no edges lower than `thresh` remain. Parameters ---------- labels : ndarray The array of labels. rag : RAG The Region Adjacency Graph. thresh : float Regions connected by an edge with weight smaller than `thresh` are merged. rag_copy : bool If set, the RAG copied before modifying. in_place_merge : bool If set, the nodes are merged in place. Otherwise, a new node is created for each merge.. merge_func : callable 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_func : callable 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 ------- out : ndarray The new labeled array. T)rrrrlabels)copyedgesrr lenheappoprrnext_idr merge_nodesrnparangemax enumerater)r r threshrag_copyin_place_merge merge_func weight_func edge_heaprrrrr_validr r%srcdstnew_id label_mapixndlabelrrrmerge_hierarchical;s<%          r;)numpyr'rrrrr;rrrrs $