merging TM and panchromatic

[Grass package]

> Can anybody tell me how to  merge TM Image(30 m res) and Spot Panchromatic
> image(10m res) using grass to produce a composite image ?  Thank you very
> much in advance .
> 
> Prakash Basnyat

I'd say: produce a color image from the TM data at 30 m res, then use d.his
at 10 m res to `shade' your color image with the SPOT panchromatyic image.
You do this by telling d.his the TM data are the `hue' layer and the SPOT
data are the `intensity' layer; there's no `saturation' layer here.

P. Martijn van Leusen -------------------------------------------------------+
Leverhulme Research Fellow, The Wroxeter Hinterland Project                  |
University of Birmingham Field Archaeology Unit                              |
Edgbaston, Birmingham B15 2TT                                                |
Phone +44 121 414 5513  Fax +44 121 414 5516  E-mail P.M.van-Leusen at bham.ac.uk