[GRASS-user] i.landsat.rgb

GRASS GRASS user
,
1

I am confused. http://mpa.itc.it/markus/grass61/demos/i.landsat.rgb
doesn't work in grass60, it calls r.univar.sh with -par, which
r.univar.sh doesn't understand. Nothing strange so far,
http://mpa.itc.it/markus/grass61/demos/ says clearly "grass 6.1".

So I grab grass61 and its r.univar.sh does understand -par, but
i.landsat.rgb (the one from the web) breaks anyway because of
EXT=nice. i.landsat.rgb is also in the 6.1 source and it doesn't
use EXT=nice, but it's not at all the same as the one on the web
and it doesn't use r.composite and the documentation *cough, cough*
and when I try it it does nothing except break with "line 94, 100,
110: [: 1: unary operator expected".

By now I have no clue what I should feed to which version of
i.landsat.rgb (the .green, .red, .blue tiles created by
i.fusion.brovey or the raw _10, _20, _30 tiles imported with
r.in.gdal?) and what is supposed to come out of each version.

Could someone please explain how to make an enhanced true colour
tiff from a set of raw landsat files?

Z

2

On Fri, Aug 11, 2006 at 12:44:54PM -0500, Zenon Panoussis wrote:

I am confused. http://mpa.itc.it/markus/grass61/demos/i.landsat.rgb
doesn't work in grass60, it calls r.univar.sh with -par, which
r.univar.sh doesn't understand. Nothing strange so far,
http://mpa.itc.it/markus/grass61/demos/ says clearly "grass 6.1".

this is right.

So I grab grass61 and its r.univar.sh does understand -par, but
i.landsat.rgb (the one from the web) breaks anyway because of

Note that i.landsat.rgb *in* grass61 is compliant with grass61.
The web version was a preliminary version which I have removed
now to avoid confusion (I didn't remember that it was there).

EXT=nice. i.landsat.rgb is also in the 6.1 source and it doesn't
use EXT=nice, but it's not at all the same as the one on the web
and it doesn't use r.composite and the documentation *cough, cough*
and when I try it it does nothing except break with "line 94, 100,
110: [: 1: unary operator expected".

Not sure what you mean:
You say that the current i.landsat.rgb *in* grass61 is broken?
I used it recently without problems.

The EXT parameter does not exist in the current version.

By now I have no clue what I should feed to which version of
i.landsat.rgb (the .green, .red, .blue tiles created by
i.fusion.brovey or the raw _10, _20, _30 tiles imported with
r.in.gdal?) and what is supposed to come out of each version.

Could someone please explain how to make an enhanced true colour
tiff from a set of raw landsat files?

Forget about the web downloaded script.
Use the one which comes with grass61.

Then simply:
i.landsat.rgb red=tm.3 green=tm.2 blue=tm.1

hope this helps,

Markus

3

Markus Neteler wrote:

Not sure what you mean:
You say that the current i.landsat.rgb *in* grass61 is broken?

I reckoned, since it's only a shell script calling other scripts, it
should work in 6.0. I was very wrong. I tried again after upgrading
to 6.1 and all the errors went away.

i.landsat.rgb red=tm.3 green=tm.2 blue=tm.1

Thanks. The entire mess was me mixing versions.

Z