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Re: convolve mystery [message #86417 is a reply to message #86416]

Wed, 06 November 2013 08:14

Mats Löfdahl
Messages: 263
Registered: January 2012

Senior Member

Den onsdagen den 6:e november 2013 kl. 17:03:06 UTC+1 skrev David Fanning:
> Helder writes:
>
>> Dunno,
>> but if you try this, you get what you expected:
>
>> imc2 = CONVOL_FFT(im, psf1, /NO_PADDING)
>
>
> You get the result you expect if you use the IDL routine CONVOL (instead
> of the CONVOLVE you are using, and set the EDGE_WRAP keyword:

Yes, but I already know how to get the expected result. The fft(fft()*fft(),/inv) method works fine for what I want to do. I merely wonder what's up with the convolve() function.

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[Message index]

		convolve mystery By: Mats Löfdahl on Wed, 06 November 2013 07:13
		Re: convolve mystery By: Helder Marchetto on Wed, 06 November 2013 07:27
		Re: convolve mystery By: Mats Löfdahl on Wed, 06 November 2013 07:53
		Re: convolve mystery By: David Fanning on Wed, 06 November 2013 08:03
		Re: convolve mystery By: Mats Löfdahl on Wed, 06 November 2013 08:14
		Re: convolve mystery By: wlandsman on Wed, 06 November 2013 08:54
		Re: convolve mystery By: Mats Löfdahl on Wed, 06 November 2013 12:00
		Re: convolve mystery By: David Fanning on Wed, 06 November 2013 12:20
		Re: convolve mystery By: Mats Löfdahl on Wed, 06 November 2013 13:22

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