[GRASSLIST:2158] RE: [GRASS5] raster georectification

[Uttam Kumar]

Probably merging the three images will give a better vieww of  the 
heterogeneous  clusters that are created  after generating a composite 
image. Yet as far as "paying for time" is concerned,it is better to use
1. i.group
2. i.points
3. i.target and
4. i.rectify to georegister the images. The transformation of images 
generally don't consume much time. So better to work on the three images 
separately.

with regards,

uttam.























>From: "Kirk R. Wythers" <kwythers at umn.edu>
>To: grass5 at grass.itc.it
>Subject: [GRASS5] raster georectification
>Date: Wed, 7 Jan 2004 09:24:50 -0600
>
>I have a set of scanned maps that I want to georectify. However I am unsure 
>of the most efficient way to handle the three images (three color bands) 
>associated with each image. I have imported them into a temporary xy 
>location and can display with d.rgb (takes about 10 seconds to display). I 
>have grouped all with i.group, and used i.target to set up new target 
>location and mapset. Now I am ready to use i.points. 
>btw... using grass5.7
>
>Thanks
>
>Kirk

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