GRASS and Spectral Mixture Analysis

GRASS GRASS user
1

Hi,

currently I have to classify some multispectral images. I would
like to use "spectral unmixing" procedures for creating fractional
images.
Does anyone use this method in conjunction with GRASS?
Is such a module existing? I would like to save time :slight_smile:

Thank you,

Markus Neteler

2

Markus,

This is definately not the right way but I export it with r.out.tiff and
then divide the tiff with gimp Image/Channel Ops/Decompose, then I
r.in.tiff those files and have the three bands of rgb. Copy the cellhd of
the original tiff to the name of your imports and you'r done.

Please folks, don't roll around laughing :wink: some day I'll learn how to do
it in grass, he he

Simon.

---------------------------
J.Simon Goodall, Lic.
Ea.Viamonte, C.C.8,
9420 Rio Grande,
TDF, Argentina
sgoodall@netcombbs.com.ar
te 54.964.30.861 fx 22.008

On Mon, 5 Oct 1998, Markus Neteler wrote:

Hi,

currently I have to classify some multispectral images. I would
like to use "spectral unmixing" procedures for creating fractional
images.
Does anyone use this method in conjunction with GRASS?
Is such a module existing? I would like to save time :slight_smile:

Thank you,

Markus Neteler