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@jps.net>
--
Gerald Edward Buckmaster Jr.
Editor, Webmaster, Imagery Analyst
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