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Structure of signature files

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Stephan Eickschen

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Apr 27, 1998, 3:00:00 AM4/27/98
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Hi all,

I would like to create signature files "by hand". So what I need to
know about now is the structure of GRASS' signature files. I did
some i.cluster - ing on several images. One signature file is attached.
As far as I understand:

1st line: just a header
2nd line: type of heading
3rd line: number of pixel belonging to this class
4th line: spectral values for each channel in this class
5th to 11th line: ???
6th line: beginning of class 2 as line 2 of class 1
...

Is there a way to fill the ??? if they are unknown so that i.maxlik
will work?

Regards,

Stephan

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Stephan Eickschen Tel. : +49 (0)251 83-34704
Westfaelische Wilhelms-Universitaet Fax. : +49 (0)251 83-36100
Institute for Geophysics
Research Unit of Physical Glaciology email: eic...@uni-muenster.de
Corrensstrasse 24
48149 Muenster
Germany

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f13_ndc_970510_1200.sig3
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