four neighbourhoods of a set or matrix
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It may be clear when you need to check if some pixels are neighbours to a specific region you are interested in in some image.
But, when asked to find the pixels that are considered 4-neighbourhood to some set or matrix, how can we do that?
Thanks.
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Image Analyst
2014-2-23
You can use connected components determination with bwlabel() or bwconncomp().
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