Atmospheric correction in ENVI, export to ERDAS

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Last Post 12 Jun 2017 05:46 AM by MariM

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Matt Spencer

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Posts:14

09 Jun 2017 10:15 AM
I am working on a project using Hyperspectral imagery and have ERDAS Imagine on my home PC and have access to ENVI on another PC at University. Is it possible, for example, to perform the atmospheric correction in ENVI, then import it into ERDAS, and then perform Principal Component Analysis, Minimum Noise Transformation (MNF), supervised classification etc? The file is a .l1r file from EO-1 Hyperion downloaded from GloVis. I read here (https://gis.stackexchange.com/questions/91021/imagine-files-between-erdas-and-envi) that you can export the file as a .bil and then import into ERDAS, so I presume it is possible? I don’t have ENVI on this PC to double check at the moment. Thanks. Matt

MariM

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Posts:2396
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12 Jun 2017 05:46 AM
Yes, it should be possible. The output from atmospheric correction (using FLAASH or Quac) is scaled reflectance. You could export this to ERDAS .img format or a more generic format such as GeoTIFF. I am not sure if ERDAS supports and will open an ENVI format .dat+.hdr but it might.

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