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2600 Topics and 4472 Replies ENVI  2600  4472
Surface Energy Balance Al...
by  Jeffrey Snoddy
14 Jun 2019 12:46 PM
2600 4472
Surface Energy Balance Al...
by  Jeffrey Snoddy
14 Jun 2019 12:46 PM
19 Topics and 43 Replies ENVI LiDAR  19  43
RE: ENVi Lidar--estimatin...
by  Mari Minari
15 Jan 2018 09:38 AM
19 43
RE: ENVi Lidar--estimatin...
by  Mari Minari
15 Jan 2018 09:38 AM
55 Topics and 110 Replies ENVI SARscape  55  110
RE: PSinSAR processing er...
by  Qualys Scan
01 Jun 2019 01:05 AM
55 110
RE: PSinSAR processing er...
by  Qualys Scan
01 Jun 2019 01:05 AM
3 Topics and 2 Replies ENVI OneButton  3  2
RE: OneButton
by  Jenny Bloom
31 May 2019 11:45 AM
3 2
RE: OneButton
by  Jenny Bloom
31 May 2019 11:45 AM
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1 Replies and 104 Views n-D Visualizer and ROI's  104  1 Started by  Nikolaos T Hi, I am new to ENVI so excuse me if I did not explain in a clear manner my problem. I am trying to create some ROI's using the n-D Visualizer tool &91;for simplicity I have created 6 classes (Class-New)&93;. Of course I have searched for pixels located at the corners of the plot, while rotating the n-D Visualizer. Here is the problem: when I am exporting the ROI's and add them in the Layer Manager there are no pixels/ROI's even though in the n-D Visualizer I have picked more than 100 pixels f...
1 104
by  Jenny BloomJump to last post
06 Jun 2019 10:31 PM
1 Replies and 53 Views Extracting raster values from point vector location  53  1 Started by  Rajeev Bhattarai Hi, I want to extract the pixel value of the vector points from a stack of raster and secondly I want to establish a rectangle around that point and extract the value in that rectangle. How can I do that Thanks in advance.
1 53
by  Jenny BloomJump to last post
06 Jun 2019 10:20 PM
1 Replies and 82 Views Error''expression must be a scalar or 1 element array in this context<BYTE array[20]''  82  1 Started by  Yassine Manyari Hello! I'm trying to add the RPC coefficients manually in the tab ''Edit Envi header'' but it shows me an error entitled : ''expression must be a scalar or 1 element array in this context
1 82
by  Jenny BloomJump to last post
31 May 2019 11:50 AM
2 Replies and 107 Views ENVI Modeler PanSharpening Batch Processing  107  2 Started by  Anna Wojtowicz-Nowakowska I need help setting up a model to batch perform 'NNDiffuse Pan Sharpening'. I have 10 multispectral Landsat images and 10 panhromatich landsat images after Dark Susbtraction process. I want to loop through each 2-image set (multi, panhromatic) and generate a pansharpening output. I tried to do this using 2 datasets, 2 iterators, generate filename, and NNDiffuse Pan Sharpening. I get the error 'Nodes cannot be traced back to more than one iterator: &91;NNDiffuse Pan Sharpening&93;. What is ...
2 107
by  Anna Wojtowicz-NowakowskaJump to last post
15 May 2019 12:50 AM
40 Replies and 1249 Views Creating a region of interest  1249  40 Started by  Rajeev Bhattarai
(Topic has multiple pages1 2 3 )
Hi, I am trying to create region of interests around several vector point locations so that I can extract the raster values out of that region. I have been working with different tools but couldn't find exactly what I am looking for. Really stressed. Can anyone help me Thanks in advance. Rajeev
40 1249
by  Qualys ScanJump to last post
04 May 2019 11:12 AM
7 Replies and 272 Views Mosaicking Sentinel 2 Data  272  7 Started by  Cole Devine Hello, I am trying to mosaic 4 scenes of Sentinel 2 data together and the program continues to crash every time i attempt to do so. I know that you cannot mosaic the bands that are different resolutions but i am only trying to mosaic the 10m bands. Does anyone know why this keeps crashing
7 272
by  Cole DevineJump to last post
04 Apr 2019 09:29 AM
7 Replies and 2273 Views Thor de-stripe and Spear vertical stripe removal  2273  7 Started by  JED Hello, I am trying to remove vertical stripes from an image. I have previously used THOR de-stripe with moderate success. However, this time the results produce a blank raster with all -Nan values. I've also tried to use SPEAR vertical stripe removal, with similar results. The mask highlights all pixels with a value at any mask value, and therefore I cannot complete the wizard to complete Spear destripe. The original image looks fine in Envi. I have verified that the original raster has va...
7 2273
by  Mari MinariJump to last post
04 Oct 2018 07:42 AM
0 Replies and 1098 Views Radiometric Calibration Processing  1098  0 Started by  Russell Ives I am using my own atmospheric correction method to determine bottom of atmosphere radiance of Worldview 2 data, and want to apply the radiometric calibration tool to convert the resulting image to BOA reflectances using the equation (pi.L.d^2)/(Esun.sin(theta)) as provided in the ENVI documentation. My routines remove much of the original metadata that came with the imagery. That documentation states 'If the input file does not contain metadata for reflectance gains and offsets, ENVI computes T...
0 1098
19 Jun 2018 12:41 PM
0 Replies and 649 Views Harris  649  0 Started by  Belgin Basriev Hello! I want to ask if it is possible to find underground tunnels with Harris Geospatial Solutions What else besides the software will I need Thanks!
0 649
11 Jun 2018 12:56 AM
0 Replies and 759 Views processing of meteosat-8 Indian ocean data coverage (IODC) using Envi 5.3  759  0 Started by  Deleted User I want to georefrence and process my meteosat-8 Indian ocean data coverage (MSG-1 IODC) in native format (.nat) using Envi5.3 , I tried with envi classic 5.3IDL and Envi5.3 but I couldn't do that. I found an extension in Internet 'ENVI MSG tools' and installed it. after that I could read my native format but when I used 'GEOREFRENCE MSG' option in 'Map' the coordination of my georefrenced map was incorrect, It seems that this extension has a problem with MSG-1 Indian ocean data coverage. what s...
0 759
29 Apr 2018 07:18 AM
1 Replies and 1069 Views Landsat Images not opening in ENVI 5  1069  1 Started by  Isabel Mendoza When I tried to upload the MTL document into envi 5 it tell me that it is not a Tiff. I was using landsat 5 to 7 TM. I know I am not doing something wrong because Landsat 8 oli and landsat Mss are working just fine. Please help! Thank you
1 1069
by  Mari MinariJump to last post
20 Mar 2018 12:07 PM
1 Replies and 1337 Views IAR Reflectance Correction (and others)  1337  1 Started by  Jose Manuel Lattus Hello! Much time I ask myself why the IAR Reflectance Correction don't allow to use a mask file. Many images have borders and the IAR use the Mean Spectral of all Pixels, so it includes the border and the border have a lot of influence are many pixels (ASTER/LANDSAT)... I think this correction will be better is you only consider the pixels with information. In the same issue, if you previously edit the envi header and set the ignore value to 0 (for example), this will ignore the borders in a ...
1 1337
by  Mari MinariJump to last post
01 Dec 2017 08:12 AM
1 Replies and 827 Views rigorous orthorectification  827  1 Started by  Francesca Marchetti Hi!i'm trying rigorous orthorectification with ENVI, i have two WorldView images and a DEM, all in TIF file format. I run all the steps but at the end the software can't complete the process, as 'rigouros orthorectification can't complete, the procese failed'. Someone can tell me what is the problem Do you know if i have to save the output file in a particular format Thank you !
1 827
by  Mari MinariJump to last post
16 Nov 2017 09:38 AM
1 Replies and 1587 Views Export TIFF File  1587  1 Started by  Z Z I want to save the image as geotiff file format in ENVI 5.3 desktop,however,I entoured the problem which is written 'SaveRasterFile failed:IDLnaMetadata Error:naGetMetadata - GetMetadataJob failed.' So,I tried it in ENVI 5.3 Classicd and I got the TIFF file successfully in the end.However,the TIFF file doesn't contain the projection. I don't know the reasons for the above problems.Can you give me the answer Thanks for your sincere reply.
1 1587
by  Mari MinariJump to last post
28 Aug 2017 08:10 AM
2 Replies and 1052 Views Mosaic  1052  2 Started by  Z Z Hi,everyone. I have downloaded several Sentinel-1 images, then I made radiometric terrain correction and convert DN value to dB. The first mosaic is made by using of two processed images in ENVI. and land area is also be removed.The masked mosaic output's size is about 4.8 G, and then two masked mosaic images( one individual mosaic image size is about 4.8G) are be made second mosaic. However,the process is very slowly this time. About 17 hours later, the mosaic is only about 75. My quest...
2 1052
by  Z ZJump to last post
21 Jun 2017 01:31 AM
2 Replies and 940 Views ROI  940  2 Started by  Z Z Hi,everyone. I have create several different ROIs in an satellite image,and I want to get the statistics of every different ROI's mean value rather than overall ROI's mean value.I have found XROI in IDL can show individual samples’ information, however these information couldn't be saved into files.So I want to know the way to get the goals. Thanks for your suggestions in advance.
2 940
by  Z ZJump to last post
20 Jun 2017 05:55 AM
0 Replies and 1072 Views CloudCompare  1072  0 Started by  John Meyer Hello, I was wondering if anyone had any experience with importing .bin files that were generated using the open source CloudCompare. I am able to import .las files that I created with CloudCompare, but I have had no luck importing meshes i created and saved as .bin, .ply, .txt, of DXF files. Thank you, John
0 1072
17 May 2017 02:01 PM
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