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1 Replies and 1709 Views Export bands to TIFF  1709  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
1 1709
19 Jul 2013 07:50 AM
2 Replies and 1595 Views Pleiades-1 Atmopheric Correction With FLAASH  1595  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...
2 1595
19 Jul 2013 07:48 AM
1 Replies and 1516 Views SPOT 5 imagery Atmospheric correction  1516  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...
1 1516
18 Jul 2013 01:56 AM
2 Replies and 1278 Views ENVI NRS Tool  1278  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
2 1278
18 Jul 2013 01:39 AM
1 Replies and 1265 Views Ignore missing values in &39;envi_stats_doit&39; function  1265  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
1 1265
17 Jul 2013 02:00 PM
2 Replies and 1406 Views Cloud detection in Landsat 8  1406  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
2 1406
16 Jul 2013 04:34 AM
1 Replies and 1550 Views SPOT 6 Support, especially in ACM?  1550  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 ...
1 1550
12 Jul 2013 04:06 PM
1 Replies and 1423 Views Mosaicking, cutline feathering  1423  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...
1 1423
11 Jul 2013 03:19 AM
1 Replies and 1201 Views output for QUick Atmospheric Correction  1201  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.
1 1201
04 Jul 2013 10:06 AM
3 Replies and 1188 Views GS Sharpen in IDL batch  1188  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...
3 1188
03 Jul 2013 09:41 AM
2 Replies and 1331 Views ENVI ZOOM - Feature Extraction Issue  1331  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 ...
2 1331
03 Jul 2013 02:55 AM
1 Replies and 1350 Views MODIS Conversion Toolkit (MCTK) output issues  1350  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...
1 1350
25 Jun 2013 03:02 PM
4 Replies and 1474 Views Post-classification problem - removal of spurious pixels  1474  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...
4 1474
25 Jun 2013 07:50 AM
1 Replies and 1383 Views Increasing available memory for processing  1383  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
1 1383
20 Jun 2013 06:58 AM
2 Replies and 1213 Views Linking windows  1213  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
2 1213
18 Jun 2013 06:23 AM
4 Replies and 2091 Views ENVI/IDL commands to read and calibrate Landsat 8 OLI  2091  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
4 2091
17 Jun 2013 12:44 PM
3 Replies and 1159 Views why can not i download the envi 5.0 sp3 full install?  1159  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
3 1159
15 Jun 2013 10:20 AM
4 Replies and 1295 Views Mosaicking / Color Balancing question  1295  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
4 1295
12 Jun 2013 05:47 AM
3 Replies and 1983 Views Issues with SP3 and Landsat 8  1983  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...
3 1983
10 Jun 2013 02:50 PM
1 Replies and 1414 Views Landsat 8 filter function/ channel definition for FLAASH  1414  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
1 1414
10 Jun 2013 11:19 AM
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