-- I am using GRASS 6.4.4 for atmospheric correction.I am trying to
customize it for hyperion sensor. I have a query regarding the number
of bands: is there any limitation if more than 7 bands are used while
using the same igeom of landsat?
I tried to give 30 bands( exctracted from hyperion) image and
corresponding RSR in i.wave.cpp.But 6s results show that after the 7th
band every band has zeros. Can any one suggest to me how to use
i.atcorr for more number of bands?
Regards
kams
Hi,
On Wed, Aug 15, 2018 at 3:57 PM kameswari devi <kams.devi@gmail.com> wrote:
-- I am using GRASS 6.4.4 for atmospheric correction.
Please consider to update to GRASS GIS 7.4. Beside thousands of other
fixes and improvements also the atmospheric correction was notably
improved.
I am trying to
customize it for hyperion sensor. I have a query regarding the number
of bands: is there any limitation if more than 7 bands are used while
using the same igeom of landsat?
There should not be any limit.
I tried to give 30 bands( exctracted from hyperion) image and
corresponding RSR in i.wave.cpp.But 6s results show that after the 7th
band every band has zeros. Can any one suggest to me how to use
i.atcorr for more number of bands?
This has been fixed in GRASS GIS 7.4.
https://trac.osgeo.org/grass/wiki/Release/7.4.0-News
https://trac.osgeo.org/grass/wiki/Release/7.4.1-News
Regards,
Markus
--
Markus Neteler, PhD
http://www.mundialis.de - free data with free software
http://grass.osgeo.org
http://courses.neteler.org/blog
On Thu, Aug 16, 2018 at 6:57 PM kameswari devi <kams.devi@gmail.com> wrote:
Thank you for the reply.Actually i tried to compile grass 7.4.0 but failed due to missing libraries which have to be downloaded online.As my working machine is offline, i could not get those libraries.I have customized for Hyperion by changing iwave.cpp file and incorporated interpolated rsr of Hyperion.i found that there is no limitation for number of bands.Atmospheric correction is working now for Hyperion.
Suggestion:
If you have the needed code changes, consider to submit an enhancement ticket at
https://trac.osgeo.org/grass/
We can then patch GRASS GIS 7.5 with it and it will go overnight into
the auto-compiled Windows version (from you other email I saw that you
are on Windows).
Then you don't need to create all the compile environment yourself.
Markus
Thanks, I'll check it out.
On Mon, Aug 20, 2018 at 8:30 PM Markus Neteler <neteler@osgeo.org> wrote:
On Thu, Aug 16, 2018 at 6:57 PM kameswari devi <kams.devi@gmail.com> wrote:
>
> Thank you for the reply.Actually i tried to compile grass 7.4.0 but failed due to missing libraries which have to be downloaded online.As my working machine is offline, i could not get those libraries.I have customized for Hyperion by changing iwave.cpp file and incorporated interpolated rsr of Hyperion.i found that there is no limitation for number of bands.Atmospheric correction is working now for Hyperion.Suggestion:
If you have the needed code changes, consider to submit an enhancement ticket at
https://trac.osgeo.org/grass/We can then patch GRASS GIS 7.5 with it and it will go overnight into
the auto-compiled Windows version (from you other email I saw that you
are on Windows).
Then you don't need to create all the compile environment yourself.Markus
--
Regards
kameswari devi P