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Re: Correlation between bands using IDL [message #72013]

Wed, 04 August 2010 22:10

Lavanya
Messages: 7
Registered: August 2010

Junior Member

On Aug 4, 11:49 am, chris <rog...@googlemail.com> wrote:
> On 3 Aug., 11:30, Lavanya <lavany...@gmail.com> wrote:
>
>> Hi,
>
>> I am pretty much new in using IDL. I have been trying to read
>> multiband image data using envi_select and envi_file_query, where i
>> get the information about the data im using.
>> Now how could i find the correlation between any two bands (here the
>> number of bands i have is 242)
>> Finally i need to generate a output correlation matrix of 242 * 242.
>> Please help me how can i go about.
>
>> Thanks
>
> Hi,
> i don't understand what you want to do. Do you want to correlate
> pixel1 band1 with pixel2 band2, pixel1 band1 with pixel2 band3 and so
> on for all pixel and bands?
>
> Regards Chris

I wanted to find the correlation between
band1 band2, band1 band 3, band 1 band 4
band 2 band 1, band 2 band 3, band 2 band 4 and so on. Final result
should be of the matrix form n * n where n will be the number of bands
of the same image. Here i am using only one image which has 'n' bands

Please help

-Lavanya

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[Message index]

		Re: Correlation between bands using IDL By: Lavanya on Wed, 04 August 2010 22:10
		Re: Correlation between bands using IDL By: rogass on Tue, 03 August 2010 23:49
		Re: Correlation between bands using IDL By: d.poreh on Tue, 03 August 2010 05:34
		Re: Correlation between bands using IDL By: rogass on Thu, 05 August 2010 00:25

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