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3 Replies and 1622 Views
Exporting ENVI format to Multispectral GeoTiff Loses Multispectral Bands (ENVI 5.2) 1622 3
Started by Deleted User
I created a seamless mosaic of two Landsat 4 scenes and another mosaic of two Landsat 8 scenes. I originally exported both mosaics in ENVI format.
When I later saved the Landsat 4 to a GeoTiff if behaved as expected, and output a multiband GeoTiff with the same appearance as the mosaic. When I attempt this with the Landsat 8 mosaic it always outputs a panchromatic GeoTiff. Is there something I am missing or a difference between the sensors where you cannot save Landsat 8 mosaics to GeoTiff, if y...
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3 |
1622 |
12 Mar 2015 10:46 PM |
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1 Replies and 2503 Views
Attempt to call undefined procedure/function: &39;ENVI_PROJ_CREATE&39; IDL 2503 1
Started by Deleted User
I've run into a problem when calling ENVI_PROJ_CREATE from and IDL procedure. I use ENVI5.1 IDL8.3.
Here is the code:
pro test_batch_modis_conversion_l2_swath
compile_opt idl2
modis_swath_file = 'C:\MCTK_Input\MYD04_3K.A2002247.0300.006.2014195232718'
;The specified output location MUST end in the appropriate path
;separator for your OS
output_location = 'E:\Downloads\Aerosol retrieval'
output_rootname = 'test'
swath_name = 'mod_3k'
sd_names = &91'Opti...
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1 |
2503 |
12 Mar 2015 02:02 AM |
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1 Replies and 1644 Views
Error launching Build Mask tool 1644 1
Started by MariM
When I launch the Build Mask tool from ENVI, I get this error message:
"An error was caught in the main event handler.
Error: Variable is undefined: FID."
How do I resolve it
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1 |
1644 |
11 Mar 2015 10:57 AM |
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2 Replies and 1545 Views
Decorrelation stretch 1545 2
Started by Deleted User
Can I apply decorrelation stretching on thermal bands of ASTER If yes, then should I use the technique on the radiance value or the thermal emissivity value Please help.
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2 |
1545 |
11 Mar 2015 05:41 AM |
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2 Replies and 1413 Views
bad lines 1413 2
Started by Deleted User
after applying flag mask correction (hyperion tool) some bad lines are still present.how to remove these bad lines(manually).
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2 |
1413 |
11 Mar 2015 12:42 AM |
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1 Replies and 1194 Views
Simple Maximum value filter 1194 1
Started by Deleted User
Hi,
I am trying to do a very simple maximum value filter in ENVI to highlight areas of interest but the only option appears to be the median value. Is there a way to create a filter that applies the maximum neighbourhood value.
Thanks,
Amanda
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1 |
1194 |
10 Mar 2015 06:10 AM |
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1 Replies and 1477 Views
Applying a mask to uniformize colors 1477 1
Started by Deleted User
Dear support team,
I want to make a mosaic with Landsat8 images for my country and I have images from different periods of vegetation.
I tried to uniformize the colors with Enhance-Histogram Matching but the are not such great results.
Is there another way to standardize, to make a level for all the images
Thanks for your time.
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1 |
1477 |
10 Mar 2015 01:42 AM |
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1 Replies and 1448 Views
along track destriping. 1448 1
Started by Deleted User
some bad lines in my hyperion data.how to remove bad lines.
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1 |
1448 |
09 Mar 2015 07:08 AM |
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1 Replies and 1915 Views
DEM Extraction 1915 1
Started by Deleted User
I get the following error message when using DEM Extraction Wizard 'Subscripts are not allowed with object properties'.
I did not get the message a couple of days ago.
Andy
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1 |
1915 |
09 Mar 2015 06:18 AM |
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1 Replies and 1641 Views
demo 1641 1
Started by Deleted User
Hello !
can i have a demo of 5.2 envi
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1 |
1641 |
08 Mar 2015 01:31 AM |
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1 Replies and 2769 Views
Processing order for ASTER L1A Imagery 2769 1
Started by Deleted User
Hi there,
I have 14 ASTER LIA Images that I need to process before I can start analyzing them for mineral spectra. However, literature for processing LIA is rare and I find myself perplexed by the order of processing steps to achieve well corrected and calibrated imagery.
There are some striping issues with some of the images - the TIR I have managed to destripe using ERDAS software, which was much more robust than what is offered in ENVI, from what I can see. Three SWIR images I will entirely...
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1 |
2769 |
07 Mar 2015 11:48 AM |
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4 Replies and 10694 Views
error in opening the MTL file 10694 4
Started by Deleted User
Dear Envi Users,
I want to open the MTL file in Envi 5.0 Classic from File-Open External File-Landsat-Geotiff with Metadata, I select the MTL file from the specific folder and I get this message :
Geotiff metadata File : D:\mozaic\LC81820272013209LGNC00_MTL.txt
Problem: An error was encountered reading this file.
Error: Array dimensions must be greater than 0
I just downloaded the image, I have not changed anything. I also tried in Envi simple and I get the same error.
Could anybody tel...
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4 |
10694 |
02 Mar 2015 02:01 AM |
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2 Replies and 2232 Views
Cross-validation in ENVI 2232 2
Started by Deleted User
Dear All
How to perform k-fold cross-validation or any other form of cross-validation in ENVI 5.0 Is there any tool for doing this or we'll have to perform its steps one by one
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2 |
2232 |
26 Feb 2015 12:30 AM |
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0 Replies and 5019 Views
Error launching ENVI: Attempt to call undefined procedure: &39;IDLRTMAIN&39; 5019 0
Started by MariM
When I launch ENVIIDL, I get the following error and ENVI does not launch:
Attempt to call undefined procedure: 'IDLRTMAIN'
How do I solve this
Answer:
This is caused by a path issue in ENVI/IDL where the application cannot find the files needed to launch ENVI. It could be caused by paths that are missing or paths that have taken precedent over the default application paths. Here are some things to check:
In IDL, go to the Preferences->IDL->Paths and make sure the is present and check...
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5019 |
25 Feb 2015 08:05 AM |
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3 Replies and 3387 Views
calculation of areas supervised classification - Rois 3387 3
Started by Deleted User
Hello i am using Envi 4.7. I have an image of 1975 from Landsat and i want to calculate the area of buildings, vegetation and sea. After i saved my roi file how can i calculate these areas at my new image Can you describe me the steps because I don't have enough experience with envi. Thank you
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3 |
3387 |
24 Feb 2015 11:51 AM |
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0 Replies and 1466 Views
Landsat 8 datasets from the southern hemisphere show as north after processing 1466 0
Started by MariM
When I open a Landsat-8 dataset in ENVI 5.2, ENVI reports that the data are in UTM Zone 18N. This is an image of the western coast of Argentina, which is in UTM Zone 18S. This dataset is exactly as it was downloaded from the USGS's Earth Explorer.
However, after I calibrate it using Radiometric Calibration, then the header of the output file shows the UTM zone in the "map info" item as 18S, while the "coordinate system string" shows the UTM zone as 18N. What is wrong
Answer...
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1466 |
24 Feb 2015 10:07 AM |
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1 Replies and 1615 Views
Reclassify Cloudmask in ENVI 1615 1
Started by Deleted User
All,
What would be the easiest way to reclassify a slough of single band cloudmasks I have downloaded from the USGS High Level Data Product download
Pixels are currently assigned as follows:
0 clear
1 water
2 shadow
3 snow
4 cloud
I'd like to designate "Clear" as "1" and everything else as "0". Any thoughts I was considering Band Math but couldn't figure it out.
Thanks in advance for any help.
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1 |
1615 |
23 Feb 2015 05:23 PM |
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2 Replies and 1559 Views
error with Texture_Cooccur_Doit 1559 2
Started by Deleted User
I am building an IDL script to calculate several co-occurrence texture measures and keep getting this error:
Attempt to subscript METHOD with is out of range.
Execution halted at: TEXTURE_COOCCUR_DOIT 311
ENVI_DOIT 3130
$MAIN$
The input file is a single band of SAR intensity data. Note that when I use an example code from ENVIPROGRAMGENERATOR or for example the online manual for the ADAPTIVE_FILTER, the examples work find but when I change to Texture_Cooccur_Doit and replicate all ...
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2 |
1559 |
22 Feb 2015 01:51 AM |
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1 Replies and 2121 Views
5.1 ROI Tool Invalid Object Reference 2121 1
Started by Deleted User
Hello,
I have a user that has the following problem I have yet to encounter. After creating a few Regions of Interest ENVI brings up the following warning: "Invalid object reference: )>. After this warning is closed ENVI crashes. Any ideas on what the problem could be Also this software is being run through VMware if that could have any effect.
Thanks for your help.
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1 |
2121 |
20 Feb 2015 02:51 PM |
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3 Replies and 1648 Views
Signal Suppression 1648 3
Started by Deleted User
Good afternoon,
I know ENVI has a built in tool for vegetation suppression but I'm wondering if there is a way to do a customized suppression of a different index. The index is similar to NDVI but uses different bands but the math is slightly different or I would just substitute in the bands I need into the vegetation suppression tool.
Any ideas
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3 |
1648 |
19 Feb 2015 11:34 AM |