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Re: spectral resampling in ENVI [message #55949] Tue, 25 September 2007 00:00 Go to next message
Tal is currently offline  Tal
Messages: 26
Registered: August 2007
Junior Member
> How are you actually doing the resampling?

I use in the ENVI panel: Spectral > Spectral Resampling
Tal

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Re: spectral resampling in ENVI [message #55959 is a reply to message #55949] Mon, 24 September 2007 09:25 Go to previous messageGo to next message
Jeff N. is currently offline  Jeff N.
Messages: 120
Registered: April 2005
Senior Member
On Sep 24, 9:31 am, Tal <t...@bar-kal.com> wrote:
> Hi everybody,
>
> When spectrally resampling an image from one floating point image
> (300,1,484) (484 bands) to another floating point image having
> dimensions (300,1,198) (198 bands) some of the values become NaN's
> (i.e. floating point infinity). I found no record of this in the help
> files nor in the forum so far.
> I was thinking of replacing these values by averaging neighbors. But
> I rather use something more robust to fix this (or otherwise see why
> it happens). There is no division by 0. the wavelength range of the
> smaller image (198 bands) is fully contained within the wavelength
> range of the bigger image (484 bands).
>
> Any ideas?
>
> Cheers,
> Tal

How are you actually doing the resampling?

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Re: spectral resampling in ENVI [message #56135 is a reply to message #55949] Mon, 08 October 2007 02:42 Go to previous message
Tal is currently offline  Tal
Messages: 26
Registered: August 2007
Junior Member
On Sep 25, 9:00 am, Tal <t...@bar-kal.com> wrote:
>> How are you actually doing the resampling?
>
> I use in the ENVI panel: Spectral > Spectral Resampling
> Tal

Apparently, the problem was not the resampling step itself but
preceding processes.
sorry for the hassle.

case closed :-)

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