|
|
|
|
|
|
3 Replies and 1459 Views
FLAASH module crashing when processing Hyperion product 1459 3
Started by Deleted User
Hi!
I have an Eo-1 Hyperion L1Gst (GeoTIFF) product that I'm trying to apply FLAASH at. I used the Radiometric Calibration tool in order to convert an extent of the imagery to BIL, as stated in the FLAASH module documentation page. When I attempt to perform atmospheric correction using the FLAASH module, it crashes and displays an error.
So far I've attempted to use both 242 band BIL and 115 (calibrated only) band BIL, ending with the same result. Also, I thought that it might have something to ...
|
|
|
|
3 |
1459 |
25 Jun 2015 02:49 PM |
|
3 Replies and 2284 Views
ASTER 1B .hdf file (no header file) 2284 3
Started by Deleted User
Do ASTER 1B .hdf files have with them an associated .hdr file When I download ASTER 1B data through Reverb (http://reverb.echo.nasa.gov/) it only lets me download 1 file which has an .hdf extension.
The problem I'm having is that the solar zenith/incidence angle is located apparently in the .hdr file but I don't have this file (only the .hdf) file. I have viewed the .hdf file using the "View HDF Global Attributes" tool but have not found this information in the .hdf file and am assu...
|
|
|
|
3 |
2284 |
25 Jun 2015 02:32 PM |
|
1 Replies and 1396 Views
ENVI BAND MATH FUNCTIONS 1396 1
Started by Deleted User
Anybody help me to learn Band Math Functions using ENVI. When I want to Reclassify a NDVI Result, Such as less than 0.4 is 0 , 0.4-0.6 as 1 and greater than 0.6 value is assign to 2. Please help me
|
|
|
|
1 |
1396 |
24 Jun 2015 09:47 PM |
|
1 Replies and 1771 Views
Problems whit landsat 8 2015 and Envi 5.1 (date data) 1771 1
Started by Deleted User
Good morning
I am using envi 5.1 and i have this problem, in a landsat image 2015 i cant see the metadata "date" look the jpg 1 this happens whit "time" and "security" metadata, in all 2015 landsat 8 images, did u know why.
jpg1: http://www.subirimagenes.com/otros-jpg1-9400018.html
And now using flaash the band 6 have 0 values, i do the same whit imagens landsat 8 2014 and all is ok, look the jpg2, (the combination is band 6, band 5 and band 4).
jpg2: htt...
|
|
|
|
1 |
1771 |
24 Jun 2015 10:34 AM |
|
|
1 |
3358 |
24 Jun 2015 07:16 AM |
|
8 Replies and 2227 Views
FLAASH module is showing an error while processing VIIRS image 2227 8
Started by Deleted User
Hi,
I am facing the following error while applying atmospheric correction to a VIIRS image.
Error:
******************************************************************
Problem: The FLAASH program exited with the following errors:
ACC error: modrd5: Nonfinite numbers in coefficient array coed.
IDL error:
OPENR: Error opening file. Unit:100
File: usr/local/exelis/envi52/classic/filt_func/npp_viirs.sli.hdr
"No such file or directory"
ACC_MODRD5
ACC_KTAEROSOL
...
|
|
|
|
8 |
2227 |
23 Jun 2015 11:53 AM |
|
1 Replies and 1612 Views
Endmember Spectra 1612 1
Started by Deleted User
I'm using the Spectral Hourglass Wizard form mineral identification and having selected a small group of pixels in the n-d visualizer to form an endmember class. Then selecting 'Retrieve Endmembers' forms a single class from the group of pixels. Does the Wizard create a mean spectral plot of the pixels forming the endmember class, which is then used in combination with the Spectral Analyst to suggest what the mineral may be
|
|
|
|
1 |
1612 |
23 Jun 2015 06:58 AM |
|
1 Replies and 1560 Views
Decision Tree script/Code 1560 1
Started by Deleted User
Dear all,
I am working on automating time-series NDVI data, i have alot of data to process. My classification was carried out in decision tree. Is there by any chance a code for the decision tree classification in envi
Steve
|
|
|
|
1 |
1560 |
23 Jun 2015 04:48 AM |
|
1 Replies and 3295 Views
Export GEOTIFF with RGB bands 3295 1
Started by Deleted User
Hi all,
I have hyperspectral raster data, and would like to export a geotiff with just three bands, and to have those bands recognized as RGB. I've had trouble doing this. Any suggestions
Thanks,
alex
Win 7 Ent x64
ENVI 5.2 SP1
|
|
|
|
1 |
3295 |
19 Jun 2015 07:01 AM |
|
1 Replies and 3492 Views
Landsat Gapfill tool 3492 1
Started by Deleted User
I am trying to fine documentation for this tool, which I acquired as a plug-in, so that I can understand exactly how the different options (triangulation, global histogram, local histogram) work. Thanks!
|
|
|
|
1 |
3492 |
19 Jun 2015 05:45 AM |
|
1 Replies and 1450 Views
ROI tool readin DN=0 of mosaic 1450 1
Started by Deleted User
Hi, I mosaicked 10 WV2 images, for some reason, the ROI tool is reading the statistics (for certain areas) as DN=0 in the 8-band mosaic. I am trying to run a classification but the software is not picking up the statistics for each class (show as DN=0).
Other info: ENVI 5.1, file size is 105GB, 8bit, pansharpened product, I used colorbalancing from the "Seamless Mosaic" tool. I also color-balance some images manually using band-math. I had to convert the FLOAT band-math output back to...
|
|
|
|
1 |
1450 |
18 Jun 2015 04:44 PM |
|
|
1 |
1758 |
17 Jun 2015 11:29 AM |
|
1 Replies and 1581 Views
HDF5 in ENVI 5.0 1581 1
Started by Deleted User
I need to import/view VIIRS imagery with ENVI 5.0. I see that ENVI 5.0 does not have a generic HDF5 format reader. Do you have any suggestions for adding an HDF5 plug-in for ENVI 5.0
|
|
|
|
1 |
1581 |
16 Jun 2015 02:57 PM |
|
1 Replies and 1548 Views
specify map corner points 1548 1
Started by Deleted User
I do the registration of satellite imagery on a regular basis, using map|registration|image to image. I imagine that the process of correlating ground control points would be easier if the new imagery would be oriented in more or less the right way (they come in all oblique rectangles). I do have the lat/lon of the corner points. Would it be possible to use this information to orient the map in more or less the right position before the registration and subsequent warping
|
|
|
|
1 |
1548 |
15 Jun 2015 09:58 AM |
|
1 Replies and 1302 Views
fmask implementation 1302 1
Started by Deleted User
Hello,
Is anybody aware of an implementation of the fmask function (Zhu and Wooodcock 2012; Zhu et al 2015) in ENVI/IDL
fmask is an automatic procedure to mask cloud, cloud shadow and snow in Landsat images (available in matlab).
Thank you
Marc Henri Derron
|
|
|
|
1 |
1302 |
11 Jun 2015 07:40 AM |
|
3 Replies and 1567 Views
ROC curve 1567 3
Started by Deleted User
can anyone please help to plot ROC for target detection results.
in classification module ENVI has this option but it doesn't work on any other file than classification. so how can plot ROC using envi or any tool.
thanks
|
|
|
|
3 |
1567 |
11 Jun 2015 04:40 AM |
|
5 Replies and 1851 Views
comment in an expressions file? 1851 5
Started by Deleted User
How can I add comment to an envi expressions file in such a way that it can be restored by the band math module
|
|
|
|
5 |
1851 |
05 Jun 2015 05:32 AM |
|
1 Replies and 3186 Views
Opening Landsat 5, 7, and 8 images in ENVI 5.0 3186 1
Started by Deleted User
Hello,
I use ENVI Version 5.0. I have LANDSAT, 5, 7 and 8 (L1T) data downloaded from http://earthexplorer.usgs.gov/
When I try to open th files to start working: Open as> Landsat>GeoTIFF with Metadata> and select the MTL file, I get for all cases the following error message:
"Unable to recognize the file type on the input"
I opened ENVI CLassic as well. Open External File> Landsat> GeoTIFF with Metadata, and also in all cases the following error occurs:
"Problem: error was encou...
|
|
|
|
1 |
3186 |
03 Jun 2015 09:59 AM |
|
1 Replies and 1739 Views
RPC to standard lat/long projection 1739 1
Started by Deleted User
ENVI documentation states we can convert images with only RPC spatial reference to a standard lat/long projection using the ENVIRegridRasterTask. Within this task is the need to define a grid using ENVIGridDefinition. However this requires knowledge of pixel size in degrees. Is there an ENVI API function to determine pixel size from an RPC spatial reference
|
|
|
|
1 |
1739 |
28 May 2015 04:23 PM |
|
0 Replies and 1827 Views
question about Spectral Information Divergence (SID) 1827 0
Started by Deleted User
Hello folks,
I am using the SID method to classify a hyperspectral image along with a spectral library. I have noticed that the IDL code that I have implemented myself (based on Du et al. 2004) does not give the same results than the ENVI tool (Classification/Supervised/Spectral Information Divergence). I am quite surprised because the process is quite simple: for each spectrum in the image, (1) I calculate the SID distance for each class in the library and (2) I assign the class with the smalle...
|
|
|
|
0 |
1827 |
27 May 2015 07:28 AM |