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1 Replies and 1797 Views Using Georeferenced Mosaicking in Envi 5.1  1797  1 Started by  Deleted User Hello, my Name is Kai, 31 years old and student for Geographic Information in Germany. At time, i`m working with ENVI 5.1 and i want make an automatic mosaicking with georefenced pictures. I have seen on a youtube tutorial (http://www.youtube.com/watchv=tr_2tA9CtCo) that you can work with button "Georeferenced Mosaicking". But i hav`nt this button on University Computer. Is this a plug in How can i become this Is it a part of license I hope you can help me, thank you very much.
1 1797
15 Jul 2014 02:20 AM
1 Replies and 1438 Views Combine two mask files into one image  1438  1 Started by  Deleted User Does any one know how to combine two mask files into one image Thank you so much.
1 1438
14 Jul 2014 03:08 AM
1 Replies and 1426 Views GCPs in shapefile format  1426  1 Started by  Deleted User Hello - I created a point shapefile in ArcGIS that contains multiple GCPs. I'd like to import these points into the RCP orthorectification workflow. However the workflow can't read the shapefile. What format does the shapefile need to be in for it to be loaded Kristin
1 1426
10 Jul 2014 05:25 PM
2 Replies and 1644 Views RapidEye 1B Azimuth and Zenith Angles for FLAASH  1644  2 Started by  Deleted User Please forgive my asking about the Azimuth and Zenith Angle parameters for FLAASH, as I know it has been covered here many time before. I have a specific question about RapidEye 1B. Based upon the parameters that are listed in my accompanying metadata record, it would seem intuitive that I could calculate the Zenith Angle using the "spaceCraftViewAngle" which has a reasonable value of 3.067680e00 degrees. Therefore I believe the FLAASH Zenith Angle parameter would equal 180 - |3.06768...
2 1644
03 Jul 2014 08:40 AM
3 Replies and 1591 Views IDL SVM Library Malloc Allocation Error_keeps coming  1591  3 Started by  Deleted User Hi,I use ENVI 4.8.I am trying SVM classification on a one-band (a VI- GDVI), with a small coverage (159600 pixels). This error message came; envi_svm_doit: An error has occurred during processingError:"IDL SVM Library Malloc allocation error" The result may be invalid.then I defragmented the working and the root directories, and ran the classification again.but the same error message keeps coming.I tried the same with NDVI, before and after. But it works!!NDVI (range : -0.18 to 0.57), ...
3 1591
03 Jul 2014 01:10 AM
1 Replies and 1430 Views Hyperion  1430  1 Started by  Deleted User how to Solve or minimize the vertical line effect in Hyperion image I am Using ENVI 5.1 and Hyperion L1gst image.
1 1430
29 Jun 2014 09:05 AM
0 Replies and 1293 Views Hyperion  1293  0 Started by  Deleted User how to Solve or minimize the vertical line effect in Hyperion image
0 1293
29 Jun 2014 09:03 AM
1 Replies and 1229 Views Floating point to byte conversion  1229  1 Started by  Deleted User I'm hoping to do an HSV transformation but cannot input the multispectral bands as they are in floating point format. Does anyone know how to convert the file to byte format
1 1229
24 Jun 2014 10:45 AM
1 Replies and 1110 Views Radiometric correction for surface reflectance and image fusion  1110  1 Started by  Deleted User I'm trying to fuse SPOT 5 PAN and XS images and having trouble with the radiometric correction. I was hoping to obtain at surface reflectance as the fused image will be used for vegetation analysis. I was able to calibrate and preform a FLAASH correction on the XS image but cannot follow the same procedure for the PAN image as FLAASH requires a multiband input. Is there another (fairly accurate) model for PAN atmospheric correction Or would it make sense to leave both images as radiance and pre...
1 1110
17 Jun 2014 01:43 PM
2 Replies and 1252 Views How to unify spatial information and fill background values?  1252  2 Started by  Deleted User Hi, everyone, a TM mosaic image with 8496 samples and 7375 lines (30 m spatial resolution)could cover my whole area. Now I get a scene of TM, which is partly covered this area and contained some clouds. I masked out the clouds and subset this images, and it is samples and lines are 7208, 5564, respectively. I want to enlarge this cloud-free image to samples and lines of 8496 and 7375 (30 m spatial resolution), and fill the no-data area with -9999. I have dozen of image with clouds, I want to sub...
2 1252
17 Jun 2014 07:41 AM
4 Replies and 1807 Views Landsat 8 in ENVI 4.x  1807  4 Started by  Deleted User Hi, I know I'm a little behind with my ENVI version (I don't see our institute upgrading for quite awhile). I'm trying to generate a Land Surface Temp map using Band 10 (keeping it simple) in Landsat 8. I'm not exactly sure of the workflow, and seem to get a few different directions from different sources. If I understand right, I first need to convert to radiance, then TOA reflectance and possibly factor in emissivity using NDVI or some other classifciation method (I'm not sure if this last p...
4 1807
16 Jun 2014 10:41 AM
0 Replies and 1171 Views pls disregard this post--trouble deleting  1171  0 Started by  Deleted User
0 1171
16 Jun 2014 08:28 AM
1 Replies and 1231 Views VIIRS DNB Values (ENVI 5.1)  1231  1 Started by  Deleted User Hello, I am trying to work with the day night band on VIIRS sensor. I can open and view the images with no problems and the image looks fine. However when I try to view the values they all appear as 0. I am assuming this is because the values of the pixels are in nanowatts (10^-9) and the values scale only shows number up to 10^-6. I have tried to use the band math option to multiply the values by 10^9 in order to try and normalize them but I end up with number on the order of 10^-6 for some rea...
1 1231
12 Jun 2014 04:57 PM
3 Replies and 1497 Views aster flaash error  1497  3 Started by  Deleted User Hello ENVI community , my name is Alejandro and im trying to use flaash atmospheric correction, i use an aster image, i do all previous steps to use flaash and all is ok. but in the final step (apply buton) envi show me this error ACC error: convert7 IDL error: End of input record encountered on file unit: 0. in context: convert7 ACC_CONVERT7 ACC_HYPER2 ACC_ACC ENVI_ACC_EVENT ENVI_FLAASH_PROCESS_MANAGER IDLRTMAIN $MAIN$ i saw in other post that the soluti...
3 1497
10 Jun 2014 05:44 PM
4 Replies and 1584 Views Flaash Error  1584  4 Started by  Deleted User Dear, When I using a Hyperion image (EO1H1400462013319110PZ_MTL_L1GST) in ENVI 5.1 'Flaash tool' after import with 'Hyperion Toolkit', that display error message details of the 'Journal File' is pasted bellow Please Help Me Tiled Processing Being Used Tile Dimensions = &91576 x 669&93 Total Number of Tiles = 2 ******************************************************************************** ** FLAASH Tile 1 Reflectance Retrieval Using Scriptfile.006 *************************...
4 1584
08 Jun 2014 01:31 AM
3 Replies and 1681 Views Hyperion Processing  1681  3 Started by  Deleted User When I use the Hyperion image with Radiometric Calibration Tool, with Flaash Setting, after completing calibration, a Pop up window appeared, and showing that "The following spectral value in the ENVI header is not consistent with the number of bands: bbl This value will be ignored." When I reopen the calibrated image then it also shows same. what is the problem. What value or File I have to use for "Radiance Scale Factor" at Flaash Please help me
3 1681
06 Jun 2014 01:21 PM
2 Replies and 1397 Views Extracting DN valuesfrom Radar Imagery  1397  2 Started by  Deleted User Hi, I'm working on radar imagery. I need whole DN values (in grid format) from radar imagery to perform some calculation in spreadsheet. I've tried file-save file as-ascii file, but the values of DN is 0 for every pixel, which is impossible. Is there another way to get it Thanks for your help Regards, Olivia
2 1397
04 Jun 2014 12:04 AM
1 Replies and 1263 Views LOST - Vegetation Analysis  1263  1 Started by  Deleted User I am new to ENVI and have a request from my work to do a forest cover comparison between 1985ish and present. We have orthophotos but I really don't think I can run the information from those. Can I do this just by downloading data from USGS How do I even start this We are trying to calculate the difference between forest coverage now and in 1985 and to find out the percentage that has been lost to development over time. If anyone can point me in the right direction it would be greatly apprec...
1 1263
29 May 2014 01:31 PM
8 Replies and 1439 Views Flaash  1439  8 Started by  Deleted User When I apply flaash with ENVI 5.1 and Landsat OLI. when flaash starts why automaticly open a popup window with Spectal Library Viewer. Is it normally or a problem of my system or mine.
8 1439
28 May 2014 10:56 AM
1 Replies and 1924 Views ACC error: autochan:known bands include ACC-Critical bands:5  1924  1 Started by  Deleted User Please Help Me, It stops my work, when I wants to use Flassh tools in ENVI 5.1. When I open metadata file using Hyperion Tool, Envi shows: ACC error: autochan:known bands include ACC-Critical bands:5 Please View the attached Picture
1 1924
28 May 2014 10:03 AM
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