find the nearest neighbour from source node to destination node

hello guys, i wish to find the only one less cost path to reach the destination node through neighbor nodes.

Answer 1

[Image Analyst]

If you have the Image Processing Toolbox, you can use bwdistgeodesic. See Steve's blog: http://blogs.mathworks.com/steve/2011/11/01/exploring-shortest-paths-part-1/