[GRASS-user] i.rgb.his/i.his.rgb not working properly

[Georg Kaspar]

Markus Neteler wrote:
> On Tue, Sep 29, 2009 at 3:26 PM, Georg Kaspar <georg at muenster.de> wrote:
>> [1] d.rgb r=szene1_mul.4 g=szene1_mul.3 b=szene1_mul.2
>> --> http://img96.imageshack.us/img96/9487/screen1i.png
> 
> are you sure about the channel order?

yes, it's a false color composite. i set the colortable to grey, so the
image looks a bit dull.

>> I also repeated the process using landsat data from the nc data set - same
>> problem here.
> 
> ok, I have tried that, too:
> 
> g.region rast=lsat7_2002_10
> d.mon x0
> d.rgb b=lsat7_2002_10 g=lsat7_2002_20 r=lsat7_2002_30
> i.rgb.his b=lsat7_2002_10 g=lsat7_2002_20 r=lsat7_2002_30
> h=lsat7_2002_h i=lsat7_2002_i s=lsat7_2002_s
> d.his h=lsat7_2002_h i=lsat7_2002_i s=lsat7_2002_s
> -> result is some grey scale image.
> Perhaps that's correct?

i converted the results back to rgb and it works. pansharpening was also
possible using channel 8.
unfortunately - it still doesn't work using quickbird data

> Find attached a RGB/HIS fusion script which I wrote some years ago:

thanks for the script. unfortunately the output looks still the same
since the script makes use of the same modules. does the script work on
your installation?