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Re: Help with code for hyperspectral image analysis [message #80372]

Mon, 11 June 2012 09:43

Brian Daniel
Messages: 80
Registered: July 2009

Member

Your problem is your call to ENVI_GET_DATA. POS has to be a scalar, so ENVI_GET_DATA returns only a single band at a time. You should loop through all the bands, apply your filter, then write the band to the output file using writeu. Then, call ENVI_SETUP_HEAD to write the header file.

-B

On Monday, June 11, 2012 10:59:55 AM UTC-4, Kel wrote:

> ;get data from the image, pos seems to indicate which band to get data from
> f = ENVI_GET_DATA(fid=fid, dims=dims, pos=140)
>
> lcmask = f LT 40
>
>
> ;apply the mask to the image array
>
> masked_image=convol(data_holder, lcmask)
>
> ;write out the result as an envi file
> envi_write_envi_file, masked_image, out_name='masktest'
>
>
> end

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		Re: Help with code for hyperspectral image analysis By: Brian Daniel on Mon, 11 June 2012 09:43
		Re: Help with code for hyperspectral image analysis By: Kel on Wed, 20 June 2012 10:26

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