[GRASSLIST:1628] Re: LANDSAT-7 ETM+ IMAGERY

[Gerald Buckmaster]

Eric,

Allow me to clarify.

I need to import FAST-L7A, which has 3 different header files,
1 for the panchomatic band, 1 for the VNIR/SWIR bands, and
1 header for the Thermal Band.

The header files end with the extension .FST not .hdr.

Actually I think I can use LPGS-LITE Version 4.1.0 to process Landsat-7 ETM+
Level1G data.  Haven't tried it yet.  Will summarize.

Thanks for your help.

Gerald Buckmaster
www.imagery-analyst.com

On Fri, 16 Mar 2001, Eric G. Miller wrote:
> On Fri, Mar 16, 2001 at 05:49:46PM -0700, Gerald Buckmaster wrote:
> > Friends,
> > 
> > I would like to import L7 imagery into GRASS.  I am most interested in a
> > command or script of commands that interrogates the header files and i
> > mports the bands noted.
> 
> Are these BIL or BIP with a .hdr header?  I thought r.in.gdal was able
> to parse those header files...
> 
> > I use r.in.gdal to import L5 imagery, works pretty well.  I notice it does not
> > attempt to utilize the georeferencing information included in the header.
> > Does anyone have a scripting solution?  I assume I should be able to create
> > transformation matrix using i.points with that metadata.
> 
> Should be sufficient just to change the cell_head information
> (resolutions, extents, etc...).  I'm guessing you're getting imagery
> that is already georeferenced to UTM?  I don't think something as
> drastic as i.points/i.rectify should be necessary unless there's some
> rotation/scaling that has to be done.  Otherwise you'd probably
> introduce some error...
> 
> > Specifically, I am interested in developing a means to automate the extraction
> > of AOI's to individual rasterfiles based on polygon masks, similiar to what
> > has been recently discussed on the ERDAS list.
> 
> Might have to convert your polygons to raster masks, but then it should work.
> 
> > I am a re-born GRASS analyst, since I re-installed Linux on my PC.  The last
> > time I worked with GRASS was 3-4 years ago.  Loved the power...hated having
> > multiple operating systems on one machine.  I'm back, and re-learning.
> 
> -- 
> Eric G. Miller <egm2 at jps.net>
-- 
Gerald Edward Buckmaster Jr.
Editor, Webmaster, Imagery Analyst

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