[GRASS-user] Pansharpening Landsat 8 Imagery
Helmut Kudrnovsky
hellik at web.de
Fri Jul 29 10:36:28 PDT 2016
Markus Neteler wrote
> On Tue, Jul 19, 2016 at 9:40 AM, Nikos Alexandris
> <
> nik@
> > wrote:
> ...
>> You can use the module from either the GUI or the TUI, within from a
>> running GRASS-GIS session.
>>
>> I know that people have installed and used it in Windows too. I have
>> never had the opportunity to test it on a Windows system myself though.
>
> Now it is also available for Windows (the Windows Addons are compiled
> on a weekly base)
>
> https://wingrass.fsv.cvut.cz/grass70/x86_64/addons/latest/
>
> Hence, g.extension or the extension menu entry will fetch it for you.
installing by g.extension in winGRASS7 works, but starting the script:
---------
C:\>i.fusion.hpf --help
Description:
Fusing high resolution Panchromatic and low resolution Multi-Spectral data
base
d on the High-Pass Filter Addition technique (Gangkofner, 2008)
Keywords:
imagery, fusion, sharpening, high pass filter, HPFA
Usage:
i.fusion.hpf.py [-l2c] pan=filename msx=filename(s)[,filename(s),...]
suffix=suffix string [ratio=rational number] [center=string]
[center2=string] [modulation=string] [modulation2=string]
[trim=rational number] [--overwrite] [--help] [--verbose] [--quiet]
[--ui]
Flags:
-l Linearly match histogram of Pan-sharpened output to Multi-Spectral
input
-2 2-Pass Processing (recommended) for large resolution ratio (>=5.5)
-c Match color table of Pan-Sharpened output to Multi-Spectral input
--o Allow output files to overwrite existing files
--h Print usage summary
--v Verbose module output
--q Quiet module output
--qq Super quiet module output
--ui Force launching GUI dialog
Parameters:
pan High resolution Panchromatic image
msx Low resolution Multi-Spectral image(s)
suffix Suffix for output image(s)
Names of Pan-Sharpened image(s) will end with this suffix
default: hpf
ratio Custom ratio
Custom ratio overriding standard calculation
options: 1.0-10.0
center Center cell value
Center cell value of the High-Pass-Filter
options: low,mid,high
default: low
center2 2nd Pass center cell value
Center cell value for the second High-Pass-Filter (use -2
flag)
options: low,mid,high
default: low
modulation Modulation level
Modulation level weighting the HPF image determining
crispness
options: min,mid,max
default: mid
modulation2 2nd Pass modulation level (use -2 flag)
Modulation level weighting the second HPF image determining
cri
spness (use -2 flag)
options: min,mid,max
default: mid
min: Minimum: 0.25
mid: Mid: 0.35
max: Maximum: 0.5
trim Trimming factor
Trim output border pixels by a factor of the pixel size of
the
low resolution image. A factor of 1.0 may suffice.
This application has requested the Runtime to terminate it in an unusual
way.
Please contact the application's support team for more information.
--------
terminating in an unusal way.
any idea?
-----
best regards
Helmut
--
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