Re: [GRASS-user] Radiometric Correction @GRASS6.4

2010-02-08 Thread Nikos Dumakis
Thanks. I have a portuguese friend that can help me :) And regarding i.atcorr code, is based on Mauro's code or the original one? Nikos On Thu, Feb 4, 2010 at 5:19 PM, Daniel Victoria wrote: > On Thu, Feb 4, 2010 at 10:36 AM, Nikos Dumakis > wrote: > > Hello Markus. Thanks for your answers > >>

Re: [GRASS-user] Radiometric Correction @GRASS6.4

2010-02-05 Thread Nikos Dumakis
Thanks. I have a portuguese friend that can help me :) And regarding i.atcorr code, is based on Mauro's code or the original one? Nikos On Thu, Feb 4, 2010 at 5:19 PM, Daniel Victoria wrote: > On Thu, Feb 4, 2010 at 10:36 AM, Nikos Dumakis > wrote: > > Hello Markus. Thanks for your answers > >>

Re: [GRASS-user] Radiometric Correction @GRASS6.4

2010-02-04 Thread Daniel Victoria
On Thu, Feb 4, 2010 at 10:36 AM, Nikos Dumakis wrote: > Hello Markus. Thanks for your answers >> As far as I saw, there are no GRASS functions to perform Radiometric > (by the way, at i.atcorr manual one of the links (INPE) is dead) > The INPE link was for Mauro A. Homem Antunes home page and now

Re: [GRASS-user] Radiometric Correction @GRASS6.4

2010-02-04 Thread Nikos Dumakis
Hello Markus. Thanks for your answers > As far as I saw, there are no GRASS functions to perform Radiometric > > Correction. > There is: i.atcorr. > Regarding i.atcorr I thought that the only thing i.atcorr perfoms is the atmospheric correction, I mean conversion from TOA (top-of-atmosphere) to B

Re: [GRASS-user] Radiometric Correction @GRASS6.4

2010-02-03 Thread Markus Neteler
On Wed, Feb 3, 2010 at 4:43 PM, Nikos Dumakis wrote: > In order to ensure that the remote sensing data sets are consistent and that > changes identified through multi-temporal analysis are indeed actual changes > in surface properties and not triggered by changed illumination and > extinction cond

[GRASS-user] Radiometric Correction @GRASS6.4

2010-02-03 Thread Nikos Dumakis
In order to ensure that the remote sensing data sets are consistent and that changes identified through multi-temporal analysis are indeed actual changes in surface properties and not triggered by changed illumination and extinction conditions, it is important to correct for effects of atmospheric