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Region Adjacency Graph (RAG) 1.0

  Date Added: September 06, 2013  |  Visits: 174

Region Adjacency Graph (RAG)

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Computes region adjacency graph of a labeled 2D or 3D image.Two regions are considered as neighbor if they are separated by a background (i. e. with color 0) pixel in the horizontal or vertical direction, as well as depth direction for 3D images.The result is a N*2 array, containing 2 indices for each couple of neighbor regions.usage:ADJ = imRAG(IMG);ADJ has the format [LBL1 LBL2], LBL1 and LBL2 being vertical arrays the same size. LBL1 is given in ascending order, LBL2 is given in ascending order for each LBL1. Ex : [1 2] [1 3] [1 4] [2 3] [2 5] [3 4] Alternative syntax:[NODES, ADJ] = imRAG(IMG);Return two arrays: the first one is a [N*2] array containing centroids of the N labeled region, and ADJ is the adjacency previously described.For 3D images, the node array is [N*3].

Requirements: No special requirements
Platforms: Matlab
Keyword: Arrays Ascending Couple Format Imragimg Indices Order Usage
Users rating: 0/10

License: Shareware Size: 10 KB
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