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Local Maxima of 2D array [message #69489]

Tue, 19 January 2010 09:48

robintw
Messages: 37
Registered: March 2009

Member

Hi,

Another question from me I'm afraid. I'm trying to implement a routine
which needs to be able to calculate the local maxima of a small window
moved across an array. That is, I have a large array and I will need to
move a small 3x3 array across it, each time working out what the maximum
value of that array is and storing its index (or selecting it in some
other way).

I've investigated various methods for doing this, including the dilate
method, but I can't seem to get them to work properly.

Is there any good (as in fast, efficient and elegant) way of doing this,
or will I be reduced to using for loops and lots of IF statements?

Best regards,

Robin
University of Southampton

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[Message index]

		Local Maxima of 2D array By: robintw on Tue, 19 January 2010 09:48
		Re: Local Maxima of 2D array By: Yngvar Larsen on Mon, 25 January 2010 07:55
		Re: Local Maxima of 2D array By: rogass on Fri, 22 January 2010 01:56
		Re: Local Maxima of 2D array By: robintw on Thu, 21 January 2010 09:39
		Re: Local Maxima of 2D array By: rogass on Thu, 21 January 2010 06:55
		Re: Local Maxima of 2D array By: karo on Tue, 26 January 2010 21:00

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