Finding 4 connectivity for a matrix

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I have a matrix
A =
1 5 9
8 2 3
4 8 3
please tell how to find 4 connectivity for this matrix

Accepted Answer

venkat vasu
venkat vasu on 4 Aug 2012
Edited: Oleg Komarov on 3 Sep 2012
L = bwlabeln(Matrix)
[L, NUM] = bwlabeln(Matrix)
[L, NUM] = bwlabeln(Matrix, conn)
L, containing labels for the connected components in Matix NUM the number of connected value found in Matrix.
[L, NUM] = bwlabeln(Matrix,4)

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