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Technique to find maximum in 100x100 element moving box [message #93752]

Wed, 12 October 2016 14:23

sam.tushaus
Messages: 14
Registered: February 2015

Junior Member

I have a 3200x3248 array (satellite swath), and I would like to find the maximum value in a 100x100 element moving box. It's exactly like using smooth or convol to find the mean in a 100x100 element moving box, but I need the max. Right now I have it hard-coded with FOR loops to take into account the edges, but it's veeeeery slow.

Does anyone have any advice on how to speed this up using IDL functions (rebin, histogram, anything of that sort)?

Thanks for your time!

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[Message index]

		Technique to find maximum in 100x100 element moving box By: sam.tushaus on Wed, 12 October 2016 14:23
		Re: Technique to find maximum in 100x100 element moving box By: sam.tushaus on Wed, 12 October 2016 14:26
		Re: Technique to find maximum in 100x100 element moving box By: Markus Schmassmann on Thu, 13 October 2016 03:36
		Re: Technique to find maximum in 100x100 element moving box By: lecacheux.alain on Wed, 12 October 2016 14:38
		Re: Technique to find maximum in 100x100 element moving box By: sam.tushaus on Thu, 13 October 2016 08:02
		Re: Technique to find maximum in 100x100 element moving box By: Lajos Foldy on Thu, 13 October 2016 10:01
		Re: Technique to find maximum in 100x100 element moving box By: Lajos Foldy on Thu, 13 October 2016 10:58
		Re: Technique to find maximum in 100x100 element moving box By: Lajos Foldy on Thu, 13 October 2016 11:56
		Re: Technique to find maximum in 100x100 element moving box By: Heinz Stege on Thu, 13 October 2016 14:59
		Re: Technique to find maximum in 100x100 element moving box By: Heinz Stege on Fri, 14 October 2016 10:25
		Re: Technique to find maximum in 100x100 element moving box By: wlandsman on Sat, 15 October 2016 16:23
		Re: Technique to find maximum in 100x100 element moving box By: wlandsman on Sat, 15 October 2016 16:32
		Re: Technique to find maximum in 100x100 element moving box By: sam.tushaus on Fri, 28 October 2016 11:49

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