[GRASS-user] Image ratio

[Vinay Elothunkal]

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 <neteler at osgeo.org> wrote:

> On Sat, Sep 28, 2013 at 8:56 AM, Vinay Elothunkal <vinay223333 at gmail.com>
> 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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