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2679 Topics and 4667 Replies ENVI  2679  4667
RE: Average NDVI Per Land...
by  Mari Minari
01 Oct 2021 09:57 AM
2679 4667
RE: Average NDVI Per Land...
by  Mari Minari
01 Oct 2021 09:57 AM
20 Topics and 48 Replies ENVI LiDAR  20  48
20 48
63 Topics and 119 Replies ENVI SARscape  63  119
Geocoding takes too long
by  maria.przylucka
23 Jun 2021 06:36 AM
63 119
Geocoding takes too long
by  maria.przylucka
23 Jun 2021 06:36 AM
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0 Replies and 40 Views Average NDVI Per Land Cover Class  40  0 Started by  Dylan Johnston Hi! I'm currently working on a project assessing the reduction in NDVI following a hurricane. I've created pre and post hurricane NDVI images, and have also undertaken a supervised land cover classification of the Landsat 8 imagery. I was wondering if anyone knew how I might go about calculating the average NDVI value per land cover class, so that I can quantify the difference. I would truly appreciate some ideas. Thanks!
0 40
29 Sep 2021 09:50 AM
0 Replies and 209 Views FLAASH model atmospheric correction error  209  0 Started by  Martin Chari May you please assist with how to resolve this error (ACC error: convert 7). I am trying to convert SPOT 6 from top of atmosphere to surface reflectance.
0 209
16 Apr 2021 02:00 AM
1 Replies and 1310 Views ASTER Crosstalk Correction  1310  1 Started by  Jose Manuel Lattus Hi! I read that ASTER need crosstalk correction, there is a processing level that have this correction, does ENVI can do this correction in any tool Do you know if ASTL1T needs also crosstalk correction thanks Jose Manuel Lattus
1 1310
by  sedat sedatJump to last post
17 Nov 2020 10:34 PM
0 Replies and 8258 Views Sentinel 2 QUAC  8258  0 Started by  Motoshi Honda I have Sentinel 2A Level 1C imagery from USGS EarthExplore and would like to perform QUAC atmospheric correction, but Sentinel 2A does not appear in the Sensor Type dropdown box of the QUAC window. Which sensor type should I use Can't QUAC handle Sentinel 2A
0 8258
18 Mar 2020 04:02 PM
0 Replies and 4285 Views Georeference with IGM  4285  0 Started by  Silvie Cafarella I have three ASCII files: 1) pixels values, 2) upper left corner longitudes, and 2) upper left corner latitudes. All three files are 1350 X 1350, left-to-right, top-to-bottom. The coordinates are in a polar stereographic projection with a 4.5km resolution (‘ a=wgs84 proj=stere lat_0=70.0000000 lon_0=-45.000000’). I tried using 'Geoference with IGM', but I either get an error, often 'an attempt to subscript DXS was out of range' or there is an output grid of 77 X 2330, with a weird arrangem...
0 4285
12 Dec 2019 01:31 PM
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