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Re: Cluster analysis [message #11151 is a reply to message #6792]

Fri, 27 February 1998 00:00

Ewan A. Macpherson
Messages: 14
Registered: December 1996

Junior Member

John Dickson wrote:
>
> I have a 3D image array containing a series of clusters
> of pixels of value 1, in a sea of value zero pixels.
>
> Has anyone an idea on how to produce an algorithm to count
> the number of pixels in each of these clusters?

Are these contiguous clusters or just regions of higher density? If the
former, you could easily use a minimum spanning tree algorithm to
identify and label the clusters. I have some (inefficient, I fear)
PV-Wave code you'd be welcome to.

--
Ewan Macpherson

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[Message index]

		Cluster analysis code By: Andrea Spinelli on Mon, 12 August 1996 00:00
		Re: Cluster analysis By: Alex Schuster on Mon, 02 March 1998 00:00
		Re: Cluster analysis By: Ewan A. Macpherson on Fri, 27 February 1998 00:00

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