Use this tag for programming-related questions about the GIS app ENVI and its API.
ENVI is an application for processing and analyzing geospatial imagery, released by Harris Geospatial.
Questions tagged [envi]
39 questions
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How to transform a HDR Envi Image into a PNG image (using GDAL)
I am trying to visualize an ENVI image with 4GB by translating it into a PNG image (i.e., a RGB file). According to the .hdr header file, the default bands to do it are: {55, 41, 12}
I am using the gdal_translate, however; I got as response a black…
Anderson Carniel
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Python Arcpy.describe trouble reading ENVI.dat
This may seem trivial, but I can seem to track the error and I am very very new to Python, though not to programming. From reading around on the internet for a bit, I think my problem is that .dat ENVI image file isn't being read as a "describe…
user1481829
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Can't find .pro file for Convert Map Projection?
I'm looking to batch process a convert map projection on a lot of files using IDL and ENVI, but I can't find the .pro file associated with convert map projection. Is it labelled differently? Or should I be using a different .pro file? I'm new to…
Scott
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Using MODIS Terra TIF file to get land-water map
I am able to read the modis image into Matlab. And I want to do some simple calculations. But, how do I access the different bands in Matlab?
So, I have downloaded the 7-2-1 tif data (Not HDF) from the MODIS website and I want to create a map that…
Geekuna Matata
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how to make a loop for reading several nc files as a raster and then write them as envi?
This code given below (developed by stackoverflow users) will read a variable from a netcdf file and write it as an envi file.
This code is working fine but I have several netcdf files like this one and I want to make a loop to do this for all files…
sacvf
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Spatially Subsetting Images in batch mode using IDL and ENVI
I would like to spatially subset LANDSAT photos in ENVI using an IDL program. I have over 150 images that I would like to subset, so I'd like to run the program in batch mode (with no interaction). I know how to do it manually, but what command…
Carly Hyatt
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Extension conversion ENVI .hdr to .icb
Am working on Qccpack for Hyperspectral image compression which uses .icb extension.
How can I convert from ENVI .hdr to .icb in order to work with Qccpack ?
Ahmed Trifa
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Extract edge of the polygon in MATLAB
I have Region Of Interest (ROI) files made in ENVI which is made of irregualr shapes of polygon. When I tried to save it in vector file, it showed several lines inside the polygon. What I want is just single line of polygon edge.I would like to…
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How to perform raster calculation in R
I am processing radiometry rasters.
I wrote two bands in two separate files already:
setwd("D:/All_radio")
writeRaster(new,filename="NIR.envi",format="ENVI",overwrite=T)
writeRaster(new1,filename="SWIR.envi",format="ENVI",overwrite=T)
When I tried…
Yuyun He
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