[GRASS-user] Supervised Remote Sensing

GRASS GRASS user
1

Hello Etienne DELAY

YOu have skipped the part where the signatures are produced.
Take a look at: http://grass.osgeo.org/gdp/html_grass64/imageryintro.html in Image classification

Hope it helps
Antonio

__________ Information from ESET NOD32 Antivirus, version of virus signature database 5297 (20100721) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com

2

Hi Antonio
Thank you for your réponce, I reread the link you sent me. But I think I
always pass a side of something because it still doen't work ...
after having completed the digitalization with

i.class group=1325_13 sub=supervised map=1325_13.red outsig=outsig1

An erreur
i.maxlik group=1325_13@teledetection subgroup=supervised sigfile=outsig
class=testSupervised
ERREUR :Unable to open signature file <outsig>

if you have other idee :slight_smile:
thank you

Le 21/07/10 16:20, António Rocha a écrit :

Hello Etienne DELAY

YOu have skipped the part where the signatures are produced.
Take a look at:
http://grass.osgeo.org/gdp/html_grass64/imageryintro.html in Image
classification

Hope it helps
Antonio

__________ Information from ESET NOD32 Antivirus, version of virus
signature database 5297 (20100721) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com

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--
Cordialement

Etienne DELAY
Deust "Webmaster et gest. d'intranet" (IDSkype : etienne.delay.tic)
Master IUP "valorisation du patrimoine et aménagement du territoire"

3

On 07/21/2010 10:09 PM, Etienne DELAY (deust 2010) wrote:

Hi Antonio
Thank you for your réponce, I reread the link you sent me. But I think I
always pass a side of something because it still doen't work ...
after having completed the digitalization with

i.class group=1325_13 sub=supervised map=1325_13.red outsig=outsig1
   

Here you have "outsig1", but...

An erreur
i.maxlik group=1325_13@teledetection subgroup=supervised sigfile=outsig
class=testSupervised
ERREUR :Unable to open signature file<outsig>
   

Here is "outsig"
Is this the problem?

if you have other idee :slight_smile:
thank you

4

Le 21/07/10 21:20, Micha Silver a écrit :

On 07/21/2010 10:09 PM, Etienne DELAY (deust 2010) wrote:

Hi Antonio
Thank you for your réponce, I reread the link you sent me. But I think I
always pass a side of something because it still doen't work ...
after having completed the digitalization with

i.class group=1325_13 sub=supervised map=1325_13.red outsig=outsig1
   

Here you have "outsig1", but...

An erreur
i.maxlik group=1325_13@teledetection subgroup=supervised sigfile=outsig
class=testSupervised
ERREUR :Unable to open signature file<outsig>
   

Here is "outsig"
Is this the problem?

if you have other idee :slight_smile:
thank you

Hi Micha
it's un copie/paste problem :wink:
i.maxlik group=1325_13@teledetection subgroup=supervised sigfile=outsig1
class=testSupervised
ERREUR :Unable to read signature file <outsig1>

but thank you :wink:

--
Cordialement

Etienne DELAY
Deust "Webmaster et gest. d'intranet" (IDSkype : etienne.delay.tic)
Master IUP "valorisation du patrimoine et aménagement du territoire"