From: Sonia Rauf on
I am working on extraction of blood vessels from MRA images. In order to find 8-connected neighbors in binary image bwlabel function is used. How can we find 8-connected neighbors of gray scale image.
From: ImageAnalyst on
On Mar 2, 7:31 am, "Sonia Rauf" <soniarau...(a)hotmail.com> wrote:
> I am working on extraction of blood vessels from MRA images. In order to find 8-connected neighbors in binary image bwlabel function is used. How can we find 8-connected neighbors of gray scale image.

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Every pixel in a 2D image (except pixels at the edges) has 8
neighbors. Do you have some special definition of "connected" that
goes beyond merely being next to it, like it must be in some intensity
range?