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Re: Convolving speed issue [message #59839 is a reply to message #59838]

Thu, 17 April 2008 11:54

rogass
Messages: 200
Registered: April 2008

Senior Member

Yes, you're right. But I have to produce the same results Matlab
produces with conv2. The Implementation of convolving matrices in the
frequency domain is unfortunately also different. I tried this before
- for small and also for large matrices.

I can't understand, why there should not be another possibility within
IDL to compute simple c[n1,n2]=sum(sum(a[k1,k1]*b[n1-k1,n1-k1]))? Any
other ideas?

Nevertheless, thanks Paolo for the hint.

Best regards

Chris

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[Message index]

		Re: Convolving speed issue By: pgrigis on Fri, 18 April 2008 06:17
		Re: Convolving speed issue By: rogass on Fri, 18 April 2008 02:16
		Re: Convolving speed issue By: rogass on Fri, 18 April 2008 01:13
		Re: Convolving speed issue By: pgrigis on Thu, 17 April 2008 13:42
		Re: Convolving speed issue By: pgrigis on Thu, 17 April 2008 13:03
		Re: Convolving speed issue By: rogass on Thu, 17 April 2008 11:54
		Re: Convolving speed issue By: pgrigis on Thu, 17 April 2008 10:16
		Re: Convolving speed issue By: rogass on Mon, 21 April 2008 08:08

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