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2 Replies and 2583 Views
compressed ERDAS files 2583 2
Started by Deleted User
Hello,
I just tried to load an ERDAS (v.2010) .IMG file into ENVI 4.7 an get an error message 'Error reding ERDAS file: Compressed ERDAS files are currently not supported'.
However, teh ITT website says compressed ERDAS files are supported:
http://www.ittvis.com/ProductServices/ENVI/LatestRelease/tabid/188/language/en-US/Default.aspx
I am confused... anyone knows how to best get the file into ENVI
Thanks
Karl
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2583 |
31 May 2010 12:58 PM |
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1 Replies and 1408 Views
vegetation reflectance 1408 1
Started by Deleted User
Dear friends
I have a question about vegetation reflectance, how can define reflectance of vegetation in ENVI Could you help about this problem
My Email is fadaei.hdgmail.com
Thank you
Sincerely Yours, Hadi Fadaei
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1 |
1408 |
31 May 2010 12:00 AM |
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3 Replies and 1760 Views
Projection problem 1760 3
Started by Deleted User
Hi,
I have 1 Landsat 7 ETM image, my_image.tif, and 1 shape file, my_shape_file.shp.
my_image.tif uses the UTM projection associated to the WGS84 datum.
my_shape_file.shp represents a boundary (a potato form boundary), which uses the Gauss Kruger projection ( which I read on Wikipedia was the same as the UTM projection) with the datum pulkovo 1942.
I’m trying to extract a ROI using my shape file.
I open my_image.tif, (File -> Open Image File) then open my_shape_file.s...
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3 |
1760 |
28 May 2010 02:35 AM |
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1 Replies and 1310 Views
MODIS Aqua Processing 1310 1
Started by Deleted User
Hi,
I am using MODIS Aqua L2 data. It does not have any projection system and I tried the "Georeference MODIS" tool in Map menu, but it did't work. Can any one please tell me how to solve this one.
Thanks,
Singaiah
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1 |
1310 |
27 May 2010 09:26 AM |
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2 Replies and 1230 Views
Re: Reading LRO data 1230 2
Started by Deleted User
Hi all.. I need to work on LRO Min RF data which is a Level-2 processed PDS product... The data has been resampled into some "Oblique Cylindrical" projection and Moon datum by which iam not able to read the map info associated with the imagery.. I was able to add (or customize) Moon datum to the 'ellipsoid.txt' file but unable to add that projection system to the same... Is there any solution to it or i just want to know if these projection and datum systems are available in the newer...
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2 |
1230 |
24 May 2010 11:49 PM |
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1 Replies and 1223 Views
ENVI 4.7 - windows 7 1223 1
Started by Deleted User
hello,
I am trying to install envi 4.7 to windows 7. how can I do this it gives error and does not install.
thanks
biricik
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1 |
1223 |
24 May 2010 09:11 AM |
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6 Replies and 1581 Views
Vegetation delineation and stratified random sampling 1581 6
Started by Deleted User
Hello,
I conducted a vegetation delineation on a 1m pansharpened IKONOS image. It generated a "classification" image with four classes (no veg, sparse veg, moderate veg and dense vegetation). I modified the NDVI values to fit more closely what I see in the true color image.
I would like to know if there is any way to generate a stratified random sample of points using these four "classes" I have generated a random sample of points for an unsupervised classificatio...
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6 |
1581 |
19 May 2010 01:46 PM |
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1 Replies and 1306 Views
Spectral time series 1306 1
Started by Deleted User
&160;
Hello all;
I am a new ENVI user and&160; I am working with hyperspectral images of clouds, trying to work out the reflectivity structure of the imaged clouds using Fourier analysis. I need to build a time series of radiance values along a certain transect of a flight for a set of different spectral bands. I have an array of pixels each containing the spectra of 252 bands from 400 to 970 nm. What I would need&160; in order to build the time series is the mean radiance value per band pe...
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1306 |
19 May 2010 07:20 AM |
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3 Replies and 1197 Views
Map ojection conversion problem 1197 3
Started by Deleted User
i have many map that i want to convert from gographic to utm , the number of map is so big it will take too time if i convert it map by map , i hope i can find a solution so i convert all map projection wich are in the same folder ..hope that this solution exist on envi !
&160;
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3 |
1197 |
18 May 2010 11:44 AM |
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6 Replies and 1327 Views
MODIS 1327 6
Started by Deleted User
Dear all.
I am new comer in ENVI user. I get problem how to atmopheric correction in MODIS DATA.
When i click&160; FLAASH to correction , the statement said : `enter ASCII filename containing wafelenght and fwhm.
I need screening. Thank you
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6 |
1327 |
17 May 2010 11:45 PM |
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1 Replies and 1214 Views
tech support for code library 1214 1
Started by Deleted User
Hello everyone,
maybe this is too general, but just recently I wanted to download a code from the code library - save_sli_to_ascii.pro from 2002. It seems that the link is broken. Can anyone from ITTVIS check this and either remove the code or repair the link(which would be better:)). I assume all of the codes must be stored on ITTVIS servers...
Thanks in advance,
Vaclav
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1214 |
15 May 2010 03:08 AM |
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0 Replies and 1339 Views
occurrence variance filter 1339 0
Started by Deleted User
Hi friends
Who could explain to me occurrence variance filter with equitation. If you reply to me, I will be appreciated. Thank you
Sincerely Yours, Hadi Fadaei &160;
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1339 |
14 May 2010 03:51 AM |
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5 Replies and 1550 Views
PPI plot 1550 5
Started by Deleted User
How can it be interpreted if a PPI plot isn't asymptotically approaching a flat line (zero slope) but rather having a contant slope I am working on a MNF-transformed Hyperion scene and tested different settings:&160; 30.000 iterations, different thresholds (2-3), all MNF-bands, MNF-bands with eigenvalue
Why weren't there all extreme pixels found (plot approaching a flat line) Do all extreme pixels need to be found for correct endmember extraction
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5 |
1550 |
14 May 2010 12:38 AM |
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2 Replies and 1490 Views
FLAASH- Atmospheric Correction 1490 2
Started by Deleted User
I have Landsat ETM (Type: "L1T") containing DN but without wavelength details which seems to be requirement for running FLAASH. While I performed the FLAASH it was asking for ASCII file containing wavelength details which I do not have it. Could anyone help me with this.
Thanks in advance.
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2 |
1490 |
11 May 2010 10:20 PM |
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8 Replies and 1433 Views
atmospheric correction codes 1433 8
Started by Deleted User
hello all,
i need to make a code for atmospheric correction using envi(flaash)and the envi help is not benifit .what shall i do
shery
&160;
&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;&160;...
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8 |
1433 |
10 May 2010 05:42 AM |
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1 Replies and 1443 Views
Datum info on H27V04, H27V05, H28V04 grid. 1443 1
Started by Deleted User
Good morning everyone.
I am trying to get the Datum info on the 4 sinusoidal grids near the Korean peninsula. I have been working on H28V05 only, but I am now eepanding my study area into 3 grids nearby.&160;
The datum info of H28V05 is.
&160;&160;&160; DATUM&160;&160;&160;&160;&160;&160;&160;&160;&160;&160; = 'Tokyo mean'
&160;&160;&160; Projection_Name2= 'Korea - TM (Middle)'
&160;&160;&160; Params2 = &916377397.2, 6356079.0, 38.000000D, 127.002890D, 200000.0, 500...
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1443 |
07 May 2010 03:55 AM |
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1 Replies and 1441 Views
Edge Stripes on classified Landsat Imagery 1441 1
Started by Deleted User
Hello all, I have a problem which I'm sure has been encountered before yet I am out of ideas of how to fix it.
I have classified some Landsat TM images and due to the background and offset at the edge of the tile there were missclassifications on the edge. I tried to mask out this area out however it still produces some striping along the edge of the image. Not sure what else could be done.
Any help would be great.
Thanks,
Steve
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1441 |
06 May 2010 03:11 PM |
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3 Replies and 1251 Views
Reflectances to Radiances or NDs 1251 3
Started by Deleted User
Hi! :)
Does anybody know how to convert a Flaash reflectace image output to radiances and convert it to NDs
Has Envi any tool for making this
Thank you very much, bye!
&160;
&160;
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3 |
1251 |
06 May 2010 09:28 AM |
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2 Replies and 1493 Views
Segmentation Fails 1493 2
Started by Deleted User
When I try to segment an image the segmentation gets to about 30 percent and then stops. I have the option of clicking next again and the same thing happens. I'm using a 4 band 1 meter spatial resolution image from NAIP and it's a geotiff. Anyone have any ideas
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2 |
1493 |
06 May 2010 12:18 AM |
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0 Replies and 2779 Views
ENVI citation style 2779 0
Started by Deleted User
Hello ITT VIS people :)
I have a very general question about most suitable citation style or most preferable for you as company. I use ENVI and IDL a lot in my research and always there is some confusion about how to give a credit to ENVI as software in the paper.
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2779 |
04 May 2010 01:51 AM |