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Convolution with non-constant Kernel? [message #73468]

Thu, 11 November 2010 16:56

SonicKenking
Messages: 51
Registered: October 2010

Member

Hi, I wonder if there is an easy way to perform convolution on an
array with non-constant kernel.

The IDL built-in CONVOL function requires the kernel to be a fixed
array, e.g.
[-1,2,-1]. I want to have a dynamic kernel that changes based on the
position of the array. Something like

array = [8,6,7,9,1,3,4,5], kernel=[sin(index_i-1), 2, sin(index_i+1)]

Is there any other built-in IDL function that can do this or is there
someone who has already coded this up? If the answer is no, I'll go
ahead and code my own program. Just checking it here beforehand to
avoid re-inventing wheels.

Thanks!

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[Message index]

		Convolution with non-constant Kernel? By: SonicKenking on Thu, 11 November 2010 16:56
		Re: Convolution with non-constant Kernel? By: Juggernaut on Sat, 13 November 2010 08:23
		Re: Convolution with non-constant Kernel? By: rogass on Fri, 12 November 2010 14:03
		Re: Convolution with non-constant Kernel? By: rogass on Fri, 19 November 2010 02:07
		Re: Convolution with non-constant Kernel? By: Gray on Wed, 17 November 2010 12:52

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