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Re: Congrid/Rebin Conundrum [message #55929 is a reply to message #55928]

Thu, 13 September 2007 06:48

wlandsman
Messages: 743
Registered: June 2000

Senior Member

On Sep 13, 9:11 am, David Fanning <n...@dfanning.com> wrote:
> Hi Folks,
>
> How do you explain these results?
>
Well, first of all CONGRID ignores the /INTERP and CUBIC keywords when
shrinking an array. (There is no straightforward way to interpolate
when shrinking an image. Think about it for a while.)

So CONGRID is always just resampling your 4 x 4 array to a 1 x 1
array, so it just takes the value of data[0,0]. --Wayne

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[Message index]

		Re: Congrid/Rebin Conundrum By: wlandsman on Thu, 13 September 2007 07:28
		Re: Congrid/Rebin Conundrum By: David Fanning on Thu, 13 September 2007 06:57
		Re: Congrid/Rebin Conundrum By: wlandsman on Thu, 13 September 2007 06:48

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