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1 Replies and 1733 Views
Export bands to TIFF 1733 1
Started by Deleted User
Hey, I am new to ENVI and have a question which is quite probably simple; I have a file with 160 bands, I need to export each band to a separate tiff file. I know how to do this individually, but how do I automate this process It is extremely time consuming otherwise. I have tried to read about batch processing but have not found the answer yet..
Thanks in advance for any replies
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1733 |
19 Jul 2013 07:50 AM |
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2 Replies and 1638 Views
Pleiades-1 Atmopheric Correction With FLAASH 1638 2
Started by Deleted User
Hi dear colleagues,
I am trying to process an atmopheric correction of a Pleiades-1A multispectral image with FLAASH tool in ENVI 5.0 SP3.
In FLAASH tool, there is a sensor type Pleiades-1 to fit the main parameters (wavelength, ...) but the processing ends with an error :
"Attempt to subsscript VALUE with AUV is out of range"
I tried numerous changes of parameters but without success => always the same error !
How to fit correcly the parameters to process an atmopheric correction o...
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2 |
1638 |
19 Jul 2013 07:48 AM |
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1 Replies and 1536 Views
SPOT 5 imagery Atmospheric correction 1536 1
Started by Deleted User
Hello All,
I am a little new to this world, therefore I will ask some stupid questions throughout. Kindly do not mind and try to provide your feedback.
I have Just received the colour SPOT 5 imagery with 2.5 meter pixel resolution. This contains 3 files, xxx_m.ige, xxx_m.img and xxx_m.rrd
I am using ENVI 5.0 for imagery analysis. what are the preprocessing steps I must take before I proceed
Secondly, When I try to apply QUick Atmospheric correction on my SPOT 5 Imagery but as I select the inpu...
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1 |
1536 |
18 Jul 2013 01:56 AM |
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2 Replies and 1299 Views
ENVI NRS Tool 1299 2
Started by Deleted User
Hello everyone,
I have to use NRS Software tool but I am unable to locate it. The description is given on the following site but no download option. Any luck
Regards,
Asif
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2 |
1299 |
18 Jul 2013 01:39 AM |
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1 Replies and 1292 Views
Ignore missing values in &39;envi_stats_doit&39; function 1292 1
Started by Deleted User
Hi,
When using 'envi_stats_doit' function,
How can I get the function to ignore missing values
I do have the data ignore value set,
But the function still does not ignore those values,
Thanks
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1 |
1292 |
17 Jul 2013 02:00 PM |
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2 Replies and 1428 Views
Cloud detection in Landsat 8 1428 2
Started by Deleted User
I have read http://earthobservatory.nasa.gov/IOTD... and i know in Landsat 8 to have Band 9 , it's band cirus to detection cloud. But i don't understand about method processing to remove (mask) cloud in envi.
Can you help me
Thanks
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2 |
1428 |
16 Jul 2013 04:34 AM |
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1 Replies and 1570 Views
SPOT 6 Support, especially in ACM? 1570 1
Started by Deleted User
Is anyone working with SPOT 6 data These data come in a JPEG2000 format (the extension is JP2). I can open them with ArcGIS but they aren't fully compatible yet (ASTRIUM says it will be better in 10.2), and I cannot get the current GDAL to see the projection information in the file. So, I'm curious if the latest ENVI 5 supports these images any better. The projection information is actually in a DIMAP formatted XML file along side the images. If ENVI could read all those parameters and be able ...
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1 |
1570 |
12 Jul 2013 04:06 PM |
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1 Replies and 1446 Views
Mosaicking, cutline feathering 1446 1
Started by Deleted User
Hello everyone,
I'm working with hyperspectral data, 0.4 m spatial res, 48 band 7.2 nm spectral res., mostly with forest area.
I have an issue after i used cutline feathering in mosaic tool. I used annotation tool to draw polyline (line where i want to cut both images) and symbol (whith image i want to cut), it doesn't make sens because i want to cut both images. Anyway i went forward, i made mosaic and result image is with a lot of zero(0) pixels, less 0 pixels are in overlap area. My question...
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1446 |
11 Jul 2013 03:19 AM |
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1 Replies and 1221 Views
output for QUick Atmospheric Correction 1221 1
Started by Deleted User
Hi, is the output from QUAC also a scaled image in integer How to convert its result to reflectance ranging between 0 and 1 when a WorldView image is used Thanks.
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1 |
1221 |
04 Jul 2013 10:06 AM |
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3 Replies and 1210 Views
GS Sharpen in IDL batch 1210 3
Started by Deleted User
Hi,
I want to sharpen a series of images in batch mode IDL and I use the following commands:
hrv = e.OpenRaster(curfile)
fid_hrv = ENVIRasterToFID(hrv)
rgb = e.OpenRaster(rgbfile)
fid_rgb = ENVIRasterToFID(rgb)
envi_file_query, fid_hrv, dims=dims
ENVI_DOIT, 'SHARPEN_DOIT', F_DIMS=dims, F_FID=fid_hrv, F_POS=lindgen(1), FID=fid_rgb, INTERP=2,METHOD=0, pos=lindgen(3), R_FID=fid_sha,/in_memory
hires = ENVIFIDToRaster(fid_sha)
e.ExportRaster, hires, outfile, 'TIFF'
curfile, rgbfile an...
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3 |
1210 |
03 Jul 2013 09:41 AM |
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2 Replies and 1367 Views
ENVI ZOOM - Feature Extraction Issue 1367 2
Started by Deleted User
Good morning everyone! I wanted to try the rule-based classification using the ENVI ZOOM's Feature Extraction. However, I cannot find this option in my ENVI Zoom The Rule-based tutorial says that I should go selecting Processing Feature Extraction. However, in my ENVI Zoom interface, under Processing there are only three options: RX Anomaly Detection, Pan Sharpening and Vegetation suppression.The ENVI ZOOM tutorial shows the screenshot of File > Preferences. The last one on the Preferences ...
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1367 |
03 Jul 2013 02:55 AM |
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1 Replies and 1371 Views
MODIS Conversion Toolkit (MCTK) output issues 1371 1
Started by Deleted User
I'm trying to reproject a Level 1B MODIS image to Sample Mercator using the MCTK GUI in ENVI, but I'm having problems with the output image.
While the actual image is being reprojected properly for the most part, there is an elongated addition to it on the right side, as if the last column was stretched to the right and repeated for many more columns.*
What am I doing wrong
My settings are as follows in the GUI:
Input HDF = MOD021KM
Selected Output Type = Projected: Triangulation-based georefer...
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1371 |
25 Jun 2013 03:02 PM |
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4 Replies and 1499 Views
Post-classification problem - removal of spurious pixels 1499 4
Started by Deleted User
Good afternoon,I am doing the Post-classification Change detection analysis in ENVI 4.7. I am using LANDSAT images from four different time periods. I did the classification on all four of them, and there are certain issues. For example: some agricultural fields that are not used anymore, or some concrete surfaces appear as the same class as the sandy beach (for example). Probably they have the same/similar reflectance. I tried to remove these spurious pixels, i.e assign them to their true class...
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4 |
1499 |
25 Jun 2013 07:50 AM |
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1 Replies and 1409 Views
Increasing available memory for processing 1409 1
Started by Deleted User
Is there anyway to increase the available memory in the OSX version for processing It appears that there is ~ 25 meg available as cache memory and a unsupervised classification using LS8 takes ~ 75 megs for writing output to memory. It appears that IDL takes ~ 1 gigs of system memory. I have plenty of machine memory 32 gigs.
thanks
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1409 |
20 Jun 2013 06:58 AM |
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2 Replies and 1235 Views
Linking windows 1235 2
Started by Deleted User
In ENVI Classic, is there a way to programatically determine (i.e., through the API) if windows are linked
-M
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2 |
1235 |
18 Jun 2013 06:23 AM |
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4 Replies and 2116 Views
ENVI/IDL commands to read and calibrate Landsat 8 OLI 2116 4
Started by Deleted User
I can't seem to find anything in the ENVI 5.0 help files on how to open or calibrate Landsat 8 OLI bands. What are the equivalent commands to ENVI_OPEN_DATA_FILE and TMCAL_DOIT
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4 |
2116 |
17 Jun 2013 12:44 PM |
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3 Replies and 1182 Views
why can not i download the envi 5.0 sp3 full install? 1182 3
Started by Deleted User
I could download it yesterday. Because the question of my network, i could not finish it.
Today, i tried to download it again. i still could not download it.i got some feedbacks. There were:
1.Forbidden
you don't have permission to access/403-invalid-token on this server
2.A critical error has occurred. An unexpected error has occurred.
why
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3 |
1182 |
15 Jun 2013 10:20 AM |
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4 Replies and 1316 Views
Mosaicking / Color Balancing question 1316 4
Started by Deleted User
Hello ENVI Users,
i have a question concerning the mosaicking tool. I did mosaicking for several Landsat TM Scenes and compared the results with and without color balancing. (I used some transects to analyse the spectral shift at the border of the scenes.)
At most points the shift in spectral signature was higher with color balancing, and lower without color balancing (so the opposite of how it should be).
Is there any explanation for this effect
Many thanks in advance
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4 |
1316 |
12 Jun 2013 05:47 AM |
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3 Replies and 2005 Views
Issues with SP3 and Landsat 8 2005 3
Started by Deleted User
I am sure many of us have been anxiously awaiting this release. Here are a few issues I have found with some quick testing. Would love to hear what others are experiencing.
Classic Interface
ENVI will not open the meta file - The error message is "Problem: An error was encountered reading this file. Error: Variable is undefined: SENSOR_TYPE"
Landsat calibration won't work on L8 files created via layer stacking - The error message is "Problem: Landsat Calibration only works wi...
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3 |
2005 |
10 Jun 2013 02:50 PM |
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1 Replies and 1437 Views
Landsat 8 filter function/ channel definition for FLAASH 1437 1
Started by Deleted User
I tried running FLAASH to correct Landsat 8 imagery. Since there is no pre-set for Landsat 8, I chose "Unknown-MSI". It keeps giving me error messages about a missing path and filename in the Multispectral Settings page, which I gather are due to the lack of a filter function for Landsat 8. How can I remedy this It is as simple as importing the relative spectral responses into an SLI file Or is there a channel definition file available
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1437 |
10 Jun 2013 11:19 AM |