U ?håã@s4ddlZddlZdd„Zdd„Zdd„Zdd „ZdS) éNc Csz| |¡D]j}|||}zd|dd<t|||ƒWntk rJYnX|d}|||dg}||d<t ||¡q dS)a¼Handles 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. Fú heap iteméÚweightTN)Ú neighborsÚ_invalidate_edgeÚKeyErrorÚheapqÚheappush)ÚragÚnodeZ heap_listÚnbrÚdataÚwtÚ heap_item©rúL/var/www/html/venv/lib/python3.8/site-packages/skimage/graph/_graph_merge.pyÚ_revalidate_node_edgessrcCs`| |¡|j| |j|¡| |¡D]&}|||d}| ||d|i¡q*| |¡dS)z+ Rename `node_id` in `graph` to `copy_id`. rN)Z_add_node_silentÚnodesÚupdaterZadd_edgeÚremove_node)ÚgraphZnode_idZcopy_idrrrrrÚ_rename_node)s rcCsd|||dd<dS)z, Invalidates the edge (n1, n2) in the heap. FrrNr)rÚn1Ún2rrrr6srcCsf|r| ¡}g}|jddD]2\}} } | d}||| dg}t ||¡|| d<qt|ƒdkr|dd|krt |¡\} }} }|rP| |¡D]}t|||ƒq| | ¡D]}t|| |ƒq¬|sâ| ¡}t || |ƒ||}}n || }}||||ƒ| |||¡}t|||ƒqPt | ¡d¡}t|jddƒD]&\}\}}|dD]}|||<qJq6||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)r rrréÚlabels)ÚcopyÚedgesrr ÚlenÚheappoprrÚnext_idrZmerge_nodesrÚnpZarangeÚmaxÚ enumerater)rr ZthreshZrag_copyZin_place_mergeZ merge_funcZweight_funcZ edge_heaprrr rrÚ_Zvalidrr ÚsrcÚdstZnew_idZ label_mapZixÚnÚdÚlabelrrrÚmerge_hierarchical;s8$ r*)Únumpyr!rrrrr*rrrrÚs $