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Re: How to read a multi-band image with IDL [message #65053 is a reply to message #65047]

Mon, 09 February 2009 06:23

Jean H.
Messages: 472
Registered: July 2006

Senior Member

shi.bobopan@gmail.com wrote:
> Hello! I will write a supervised classification programme and want to
> read a multi-band ETM+ image with IDL. But ENVI_GET_DATA function can
> only read one band. It seems that READ_IMAGE function also read gray
> image or RGB imge only. How can I read a multi-band image at one time?
> I am new in IDL. Thank you very much.

Hi,

from the top of my head, you could

1) open the file via ENVI_OPEN_FILE
2) get the image dimensions and other info (offset etc) via envi_file_query
3) read the data via read_binary

Jean

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[Message index]

		Re: How to read a multi-band image with IDL By: Mort Canty on Mon, 09 February 2009 09:24
		Re: How to read a multi-band image with IDL By: Jean H. on Mon, 09 February 2009 06:23

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