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Jun
26
comment GeoTiff exported using GRASS will not open in other programs
What does cannot get to recognise mean? Any error message? Or simply a blank image? Did you check for color-tables issues? Did you check the statistics of the GeoTiFFs inside Arc*? Please, report the composition of the group itself (the group in GRASS-GIS' database) and the output of r.info for the raster maps that compose the group in question.
Jun
9
comment how i calculate land surface temperature using landsat 8 in Envi 5.1
Nothing for ENVI, but maybe of interest for GRASS GIS users: github.com/NikosAlexandris/i.landsat8.swlst
Jun
9
comment Atmospheric correction for pansharpened imagery?
Maybe you could rephrase the title. The questions are about converting from DN to Top of Atmosphere Radiance/Reflectance.
May
30
comment Asking linear regression between NDVI and LST using ENVI
Off-topic: how did you derive LST from Landsat8?
Apr
8
comment Pansharpening Landsat 8 tiles in Grass 7
As for the i.pansharpen process, please post the range of raster values just before calling i.pansharpen, for example, what does r.info -r LC81740382014220LGN00_refl4 report? Check also gis.stackexchange.com/a/67319/5256.
Apr
8
comment Pansharpening Landsat 8 tiles in Grass 7
In order to compile an add-on, you need to have GRASS GIS' source code. Please read the respective README file. I have no access to a Windows machine. Someone, though, has installed and used i.fusion.hpf under Windows, as can be seen in this "issue" discussion.
Apr
8
comment r.recode rules file issue
@randusr836 Can you accept your answer?
Apr
8
revised Is d.mon xN deprecated in GRASS in favor of something in the wxGUI?
added 3 characters in body
Apr
1
comment Pan sharpen Landsat 8 using Grass 7
The sharpening effect is obvious in the screenshots (more details on the right image). Yet, the colors are not vivid/contrast not high(?). Maybe the appearance can be improved further by experimenting with i.colors.enhance. What is the purpose of the sharpening in this case? Nice visuals or subsequent classification?
Mar
29
comment Monthly Average Solar Maps (R.Sun) in Grass
We need to update the answers. Things are easier now in GRASS7 within it's temporal framework.
Mar
29
comment Monthly Average Solar Maps (R.Sun) in Grass
Just saw this. +1 for indexing in bash. Looks like Python, a bit :-).
Mar
24
awarded  Civic Duty
Mar
24
comment Difference between FCELL, DCELL and CELL in GRASS GIS?
Please accept one of the answers, both are valid.
Mar
24
answered Difference between FCELL, DCELL and CELL in GRASS GIS?
Mar
21
revised How to georeference using GDAL tools?
correct order for lon and lat in -a_ullr
Mar
21
comment How to georeference using GDAL tools?
I have edited the post for the correct order of x and y in -a_ullr.
Mar
21
suggested approved edit on How to georeference using GDAL tools?
Mar
19
comment Empty raster returned after GRASS i.atcorr with Landsat8 data
Of course, only the original poster can accept an answer. Given the "historical" character of this one, perhaps it is wise to close it, if the OP won't take further action.
Mar
19
comment GRASS i.landsat.toar returns empty raster
Please, accept this answer so as to help future readers to understand better the historical nature of the question. In addition, this example emphasizes the speed with which things can roll in an open source project. In case the answer won't be accepted within reasonable time --given it is an old question and, thus, of less "usage" interest-- I kindly ask (and will act upon via a flag) for closing it.
Mar
19
answered GRASS i.landsat.toar returns empty raster