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Re: Image with *.rrd format ? [message #62216 is a reply to message #62127]

Wed, 27 August 2008 07:33

Wox
Messages: 184
Registered: August 2006

Senior Member

On Wed, 27 Aug 2008 03:38:35 -0700 (PDT), d.poreh@gmail.com wrote:

> Folks
> Hi
> I have some images with .rrd format (one image consist of 3 file: rrd
> +aux+dt2). Does any one have experience with this kind of data, that
> how we can import it to IDL (or ENVI)?
> Any help?
> Cheers
> Dave

This is Elevation Data no?

dt2: Digital Terrain Elevation Data (level2)
rrd: Reduced Resolution Dataset (pyramid file which helps the image
display faster)
aux: Auxiliary file (color map, coordinate system, projection
info,...)

This might help to decode the dt2 file:
http://en.wikipedia.org/wiki/DTED
http://www.nga.mil/ast/fm/acq/89020B.pdf

For the aux file, I don't know:
http://tinyurl.com/5unxyj

I don't think the rrd file is obligatory (but I'm not a specialist).

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[Message index]

		Image with *.rrd format ? By: d.poreh on Wed, 27 August 2008 03:38
		Re: Image with *.rrd format ? By: d.poreh on Thu, 28 August 2008 00:45
		Re: Image with *.rrd format ? By: Jean H. on Wed, 27 August 2008 09:12
		Re: Image with *.rrd format ? By: Wox on Wed, 27 August 2008 07:33
		Re: Image with *.rrd format ? By: Vince Hradil on Wed, 27 August 2008 07:12

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