[GRASSLIST:5313] Re: comparing two different maps

[Ivan Marchesini]

Try to see the documentation about i.target, i.group, i.point, i.rectify....
It should work for you

Bye 

Ivan





Alle 06:23, martedì 14 gennaio 2003, Abhay Kulkarni ha scritto:
> Hi all.
>
> My first map was a tiff image of 2540 x 3500 pixels of 300 dpi resolution
> with a scale of 1:63000. I created a xy location, imported that raster map
> and digitized.
>
> My second map covers the same geographic area, but image size is 512 x 512
> pixels with 90 dpi resolution, scale unknown (it is a tif image converted
> from a satellite image).
>
> I want to digitise this map and compare the two layers. I don't know
> whether it will be possible and am confused. Should lat-lang coords are
> must ? or image transformation ? ...
>
> Please help.
>
> Thank you.
> Regards,
> Abhay.

-- 
Ivan Marchesini
University of Perugia 
Italy