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1 Replies and 908 Views
Call Customize Projection 908 1
Started by Deleted User
Hello,
I would like to know how to call the "Customize projection" widget from IDL and how to retrieve the information it throws.
I saw Mr. White is doing it in the Modis Toolkit, but I did not found any hint in the help file...
Thank you!!!
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1 |
908 |
31 Mar 2009 05:44 AM |
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1 Replies and 1749 Views
evf to AOI error 1749 1
Started by Deleted User
i've been trying to convert a polygon shapefile to AOI. what i did is to convert the shape to evf. From there, I opened the vector window viewer -->File--> Export Active Layer to AOI..
The error says "None of the objects from this vector layer transferred to an ROI associated with the input file".
Can anyone help
Thanks.
&160;
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1 |
1749 |
29 Mar 2009 11:17 PM |
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3 Replies and 1383 Views
ASTER AST09 Radiance Sensor - FLAASH 1383 3
Started by Deleted User
Hi,
I want to process data AST09 aster (bits), these products are in radiance values. When I use the FLAASH the results are very bad, why when using images AST AST L1B and L1A (floating point) if my results are good.
Which isthe solution for data processing ASTER radiance values (bits) in FLAASH
Thank you
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3 |
1383 |
29 Mar 2009 10:07 PM |
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3 Replies and 1632 Views
only pixel values in txt files 1632 3
Started by Deleted User
dear all,
i've got a sar image on which i defined different roi areas. for a statistical analysis, i need to export every single pixel value (DN) within a specific roi. as i can see, when i export a statistics files from envi, the DNs are classified with different bin sizes. is it possible to avoid classification and export all DNs
&160;
thanks in advance!
&160;
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3 |
1632 |
26 Mar 2009 08:02 AM |
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3 |
1397 |
25 Mar 2009 09:05 PM |
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2 Replies and 1243 Views
ENVI LiDAR Toolkit - Error message 1243 2
Started by Deleted User
I have used the ENVI LiDAR Toolkit in the past but this is an issue I have not seen. When I click to use the "3D Lidar Levels Viewer" I get a warning window that states:
The following error was encountered: Attempt to call undefined procedure/function: 'GET_SCREEN_SIZE'. Please consult the supplier of the application.
I have looked for additional information but have found none. Any suggestions.
Thanks
ENVI 4.5 32 or 64 bit (IDL 7.0)
WIN XP Pro x64
NVIDIA Quadro FX 1700
&16...
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2 |
1243 |
25 Mar 2009 05:46 PM |
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0 Replies and 1211 Views
how to assign colors for a classified image with code 1211 0
Started by Deleted User
Classified image from Envi in it's own format has default&160;gray value&160;based on zero to num_class-1, and there will be default colors defined for each class in the .hdr file.
But supposed coding the grayValue in this way, for example: 0, 14, 168, 22, 246, 279, 34, 379.&160; And now how should assign colors for each class ,as well as save the &160;image in tiff format.
Who have good ideas
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0 |
1211 |
25 Mar 2009 06:53 AM |
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9 Replies and 1841 Views
KT Aerosol Retriveval setting for QuickBird in Flaash 1841 9
Started by Deleted User
Dear Friend,
We are using Flaash for&160;atmospheric correction of Quickbird. We have a problem to input&160;&160;values in multispectral setting window&160;(KT Upper and Lower channel, Maximum Upper Channel Reflectance, Reflectance ratio and Cirrus channel).&160;
Anybody help me to explain&160;about &160;those values&160; Where can I get&160; those values
&160;
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9 |
1841 |
24 Mar 2009 01:47 AM |
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1 Replies and 1296 Views
generating a mask from an ROI in IDL, and then apply over an image.img 1296 1
Started by Deleted User
Hi all,
I&180;m trying to generate a mask from an region of interest ROI&160;in IDL, and then apply over an image.img,
From an vector,&160;I&160;generate&160;the ROI (in ENVI) exporting active layer to roi (one ROI), then I save the ROI.
I generate the mask from a “region of interest.roi”, the code works, but doit wrong, because the mask generated with the roi have diferent numbers of files and columns that the original image,&160;then the image masked had a wrong size. I attach the c...
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1 |
1296 |
18 Mar 2009 02:53 PM |
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1 Replies and 1550 Views
Opening MODIS data on ENVI 1550 1
Started by Deleted User
I have been trying to work on the MODIS_aqua on ENVI to compare the satellite data and the ground data. I have not been able to retrieve the water leaving radiance for any bands from the ENVI. Could you please help me go through this process
Thanks
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1 |
1550 |
18 Mar 2009 01:09 PM |
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4 Replies and 1269 Views
Running Help problem for ENVI 4.6 1269 4
Started by Deleted User
I already installed the 64bit JRE and 32bit JRE and modify envihelp.ini file (following with previous post)&160; but it is still has error:&160; JVM terminated. Exit code=-1...
My PC: Intel(R) Xerox(TM), Windows XP professional 64bit
Please help me
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4 |
1269 |
18 Mar 2009 01:33 AM |
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1 Replies and 1540 Views
subset data via ROIS ENVI/IDL 1540 1
Started by Deleted User
Hi all,
Iam trying to make a mask via ROIS/EVF in IDL, and then aply to my images,
any idea,
Thanks in advance..
Javier.
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1 |
1540 |
16 Mar 2009 12:47 PM |
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0 Replies and 1219 Views
export .evf to ascii 1219 0
Started by Deleted User
Hi all
I'm working on coastlines in antarctic area and i would like to edit a coastline which is in a vector file .evf to make it fit the coastline of a geotiff, and after editing, export the coastline in an ascii file made of to columns (longitute and latitude for each point).
Until now, i manage doing this by exporting my vector file to a ROI and then, from ROI to ASCII, but in the file i get, the points don't appear in the right order. It seems that the image and vector are scanned and the ...
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0 |
1219 |
16 Mar 2009 10:34 AM |
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0 Replies and 1216 Views
Problem creating a spectral library 1216 0
Started by Deleted User
Short version: So I have these spectra I'm trying to import into ENVI so I can use them in mixure tuned matched filtering a Hyperion file. I brought them in as an ASCII file but it insists on thinking that the number of wavelengths (1-195) is the amount of wavelengths, when that's actually about 400 to 2300 nm. Hence, when I try to MTMF, it gives me only static as an output, I'm guessing because it's trying to compare wavelengths with wavelengths that aren't there.
Here's the long version, so ...
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0 |
1216 |
12 Mar 2009 06:14 PM |
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2 Replies and 1159 Views
Landsat L1T (and perhaps other formats) Pre-processing Problem 1159 2
Started by Deleted User
I've think I've discovered a problem with the Landsat TM pre-processing functionality built into ENVI.&160;&160;As accessed through the ENVI menu system, the tmcal_doit function does not correctly adjust for the gain/bias as used in the L1T processing for Landsat 5 or 7.&160; It appears as though it does not&160;know that the minimum QCal DN value is 1, not 0, and miscalculates both the gain and bias when converting to at-sensor-radiance.&160; This causes errors in both calculations of at-s...
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2 |
1159 |
12 Mar 2009 12:22 PM |
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2 Replies and 1144 Views
Problem in georeferencing images with envi_glt_doit, 1144 2
Started by Deleted User
Hi all, i am experimenting problems writing a code to georeference MODIS DATA. I copy and paste the code “example_glt_usage” from ENVI help in the IDL soft 6.2, I change the '&91; &93;", and I compile and run the code, then I select the images and next the runtime halt with the message error: “envi_built_glt_doit: An error has occurred during processing” Error: “Attempt to subscript DXS with is out of range.” The result may be invalid. Some one experimented these error I attac...
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2 |
1144 |
12 Mar 2009 09:10 AM |
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2 Replies and 1176 Views
Maximum-likelihood classification - prior probabilities 1176 2
Started by Deleted User
Hello there, I have some forestry data with known proportions of tree species. How I can apply it in ENVI as prior probability values in Maximum-likelihood classification
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2 |
1176 |
12 Mar 2009 07:57 AM |
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1 Replies and 1377 Views
conditional statement 1377 1
Started by Deleted User
Is there some function in ENVI that allows for building a conditional statement For example:
If Band 1 = 5 then Band 8
If Band&160;1 = 6 then Band 9
otherwise Band 7
I've done similar things in other RS software, but cannot find it in ENVI. I'd appreciate any help.
Thanks,
Mike
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1 |
1377 |
10 Mar 2009 11:43 AM |
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2 Replies and 1128 Views
pixel editing other than SpatialPixelEditor 1128 2
Started by Deleted User
Hello,
For some post-classification, I'd simply like to create an ROI and then set all pixels within that ROI to one class value, so that I can quickly get rid of some small misclassifications. Spatial Pixel Editor, as well as Sieve, Clump don't produce the results I need. If anyone knows, please let me know.
Thanks.
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2 |
1128 |
10 Mar 2009 09:11 AM |
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1 Replies and 1290 Views
Preprocessing L1T/L1G 1290 1
Started by Deleted User
Hello everybody,
&160;
I am a new ENVI user and have my problems with the first steps of preprocessing and calibrations. I have some Landsat-5-TM and Landsat-7-TM Data (L1T-Type / L1G-Type) and my aim is a change detection map for nearly 20 years of landscape development.&160; My question is now, which preprocessing steps are necessary and which are already done as a standard from Landsat
Thank's for all answers and a nice week for all.
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1 |
1290 |
09 Mar 2009 04:28 PM |