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Smoothing image by regression in IDL [message #88499]

Sat, 03 May 2014 02:39

Dry in water
Messages: 18
Registered: October 2012

Junior Member

Hello all,
I'd like to predict NDVI as a function of time using polynomial regression for each land cover separately and integrate them into one image. In other word, I'm going to do temporal smoothing on NDVI image.
I have 2 images; one is time series 8-day NDVI image (26 bands) from Apr to Oct. Another one is Land cover image with 6 classes coded form 1-5. The reason to separate each land cover is just to reduce file size. NDVI image is very big, more than 12GB. Due to big size of image, it is taking very long time for this calculation. Then someone suggested me to use timely average data or spatial subset. Since timely information is my main point, I decided to calculate the regression for each land cover. Anyone to help me?

Thanks in advance

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[Message index]

		Smoothing image by regression in IDL By: Dry in water on Sat, 03 May 2014 02:39
		Re: Smoothing image by regression in IDL By: Dry in water on Sun, 04 May 2014 09:19
		Re: Smoothing image by regression in IDL By: Craig Markwardt on Sun, 04 May 2014 14:38
		Re: Smoothing image by regression in IDL By: Klemen on Sun, 04 May 2014 15:12

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