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3 Replies and 443 Views
Gain and offset values for Sentinel-2 443 3
Started by Ale Briseno
Hello! I am new to ENVI and attempting to do a radiometric calibration and dark subtraction on Sentinel 2 L1C images. The metadata in the ENVI header shows 0.000 for the gain and offset values of all of the bands. I believe this is why I am getting 'no data' when I attempt the radiometric calibration. Where can I find or calculate the gain and offset values to input them using the 'Apply Gain and Offset' tool. I haven't found this information in the metadata, but I probably don't know wh...
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0 Replies and 126 Views
SarScape Installation 126 0
Started by jorge lira
Upon installation of the package SarScape, the following message appears: “This computer does not seem to have any OpenCL platform suitable for SarScape. Since SarScape 5.1, OpenCL is a strict requirement” It seems to be that SarScape does not recognize the OpenCL platform.
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18 Apr 2021 03:45 PM |
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1 Replies and 639 Views
ROI Statistics 639 1
Started by CCC MMM
Hello all, I am new to this online community and may be asking some random general questions in the coming months. I would like to be able to interpret the statistics of an ROI, using ASTER L2 Surface Temperature (AST_08) data. My main objective is to be able to extract the average temperature within a 100 pixel area. I understand that this can be done by right clicking on the ROI layer and exporting the Statistics to a text file. When I do this, however, I can't make sense of any of the d...
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0 Replies and 357 Views
netcdf maximum number of variables 357 0
Started by Kostas Tsigaridis
I am trying to create a netcdf file with IDL that will contain 19,000 variables. The code executes without errors, but then the file only contains 8191 variables. I know that the netcdf library has a limit that you can overcome by recompiling in older versions (the limit is gone in very new versions), but how can I get this to work in IDL Thanks
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26 Oct 2020 07:26 AM |
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1 Replies and 1313 Views
change color -Nan pixels 1313 1
Started by alison cramer
Hello, Does anyone know if there is a way to change the color of -nan pixels I have masked my shadows, and am now doing band depth images. I would prefer my shadows to show up as a color other than white.
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