Re: [GRASS-user] Image ratio

Micha Silver Sat, 28 Sep 2013 09:14:25 -0700

As Markus mentioned, please fill in more details:
* What version of GRASS, on what operating system?
* What have you tried?
* What error message or result are you getting?
* What are you trying to achieve?

On 09/28/2013 06:42 PM, Vinay Elothunkal wrote:

HI,

I am beginner of grass GIS. I would like to do the image rationing. I followed the above command but shows some syntax error. how can I go with image rationing in grass for landsat image.

thanks

On Sat, Sep 28, 2013 at 6:19 PM, Markus Neteler <[email protected]> wrote:

On Sat, Sep 28, 2013 at 8:56 AM, Vinay Elothunkal <[email protected]> wrote:
> HI,
> How to do image rationing between two bands 5/2 of landsat in grass. I used
> this command ( r.mapcalc
> "ratio5_2=1.0*p126r046_7t20010929_z48_nn50/p126r046_7t20010929_z48_nn20"
> d.erase
> d.rast ratio5_2)
> but it doesn't work

Could you elaborare on "it doesn't work"?

Markus

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Micha Silver
GIS Consultant, Arava Development Co.
http://www.surfaces.co.il

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Re: [GRASS-user] Image ratio

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