[GRASS-user] pansharp fusion of ikonos image

Brad Douglas rez at touchofmadness.com
Mon Feb 26 15:44:30 EST 2007

On Mon, 2007-02-26 at 19:21 +0100, Massimo Di Stefano wrote:
> Hi,
> have you any suggestion on how can i do a ikonos "pansharp fusion"  
> using grass ?
> there isn't a command that already done this things,
> is possible to use an r.mapcalc expression to do it ? have you  
> experience about ?
> thanks for any help!
> Massimo.

A technique I've used in the past is to use i.rgb.his to convert to HIS
colorspace and replace the intensity (I) channel with the pan imagery.
Then use i.his.rgb to convert back to RGB colorspace.

Brad Douglas <rez touchofmadness com>                    KB8UYR/6
Address: 37.493,-121.924 / WGS84    National Map Corps #TNMC-3785

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