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Resample (neighborhood averaging) a 3D array with missing data [message #86762]

Sun, 01 December 2013 17:51

zhangj.sdu
Messages: 6
Registered: December 2013

Junior Member

Hello, everyone:

I want to resample a 128x20000x32 (sample,line, band) image with missing data into a 32x5000x32 image, using neighborhood averaging over 4x4 pixels.
The REBIN function cannot help, since it has no NaN keyword like MEAN; The "Average Arrays with Missing Data" tip in the "Examples To Illuminate the IDL Way" is for two arrays (http://www.idlcoyote.com/idl_way/smallexamples.html).

The total amount of images is hundreds of gigabytes. Is there any fast solution to this?

Thanks.
Clark

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[Message index]

		Resample (neighborhood averaging) a 3D array with missing data By: zhangj.sdu on Sun, 01 December 2013 17:51
		Re: Resample (neighborhood averaging) a 3D array with missing data By: Matthew Argall on Sun, 01 December 2013 20:55
		Re: Resample (neighborhood averaging) a 3D array with missing data By: zhangj.sdu on Mon, 02 December 2013 02:35
		Re: Resample (neighborhood averaging) a 3D array with missing data By: lecacheux.alain on Mon, 02 December 2013 02:35
		Re: Resample (neighborhood averaging) a 3D array with missing data By: lecacheux.alain on Mon, 02 December 2013 02:39
		Re: Resample (neighborhood averaging) a 3D array with missing data By: lecacheux.alain on Mon, 02 December 2013 02:44
		Re: Resample (neighborhood averaging) a 3D array with missing data By: Moritz Fischer on Mon, 02 December 2013 02:47
		Re: Resample (neighborhood averaging) a 3D array with missing data By: zhangj.sdu on Mon, 02 December 2013 16:28

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