how to rescale raster data values

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03-06-2012 02:57 PM
CathiWinings
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I used "composite bands" to create a stacked image with ndvi as 1 band and a dem as another band. I'd like to classify the stacked image, and have tried, but the dem seems to be the only band that influences the classification. I am thinking this is because the ndvi values have such a small range (-1 to 1) compared to the dem (300-2000). Does anyone know how to rescale my ndvi data to have a similar range as my dem? Or do you have any ideas about why else this might be happening?

thanks.
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