Convolution of Arrays

Posted by Gregory James on Nov 11, 2014; 10:59am
URL: http://imagej.273.s1.nabble.com/Convolution-of-Arrays-tp5010371.html

Dear ImageJ community,

I would like to convolve two functions together. My data are in two 1-D arrays. I was very excited with the recent introduction of the 'Array.fourier' function. Thank you to the ImageJ administrators for this.

The problem I'm having is that I can perform the multiplication in Fourier space to do the convolution but then I can not transform the result back into real space. Are there any plans to introduce an inverse function to 'Array.fourier'?

I've also tried representing my 1-D arrays as images then using the FFT functionality, but this doesn't seem to be working.

Does anyone have any bright ideas as to how I can convolve two functions together?

Thank you very much,

Greg.

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