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ENVI

Export Targets

Export Targets

Use the Export Targets panel to export target detection overlays produced by the Rule Thresholding panel to regions of interest (ROIs) or vector files. If you previously used the Spatial Filtering panel, then the filtered results will be exported.

First, select the layers that you want to export from the Target List. Then select one of the following options.

Exporting to ROIs


ENVI uses ROIs for a number of processes. Since ROIs are pixel-based, the input image does not need to be georeferenced for this option to be available.

  1. Click Export to ROIs. The input image is loaded into a display group, and the new ROIs are added to the ROI Tool dialog. The new ROI names are appended with (THOR derived target) to differentiate them from ROIs you may have created as training sets.
  2. The exported ROIs only exist in memory at this point. To save them to disk for future use, select File > Save ROIs from the ROI Tool menu bar.

Exporting to ENVI Vector Format


  1. Click Export to EVFs. This option is only available when the input image is georeferenced.
  2. Enter a root name for the output EVF files. One EVF file will be created per layer with an extension of _.evf. If the input image projection is not Geographic Lat/Lon, all vectors will be converted to Geographic Lat/Lon when each EVF is created. Once processing is complete, the exported layers appear in ENVI's Available Vectors List. From there, you can load the vectors.

Exporting to Shapefiles


  1. Click Export to Shapefiles. This option is only available when the input image is georeferenced.
  2. Enter a root name for the output shapefiles. One shapefile (along with ancillary files) will be created per layer with an extension of _.shp. If the input image projection is not Geographic Lat/Lon, all vectors will be converted to Geographic Lat/Lon when each shapefile is created. Once processing is complete, the exported layers will be written to the output directory but will not be loaded into ENVI (as this would require a conversion back to EVF).

Exporting to KML Files


Keyhole Markup Language (KML) format files are used by Google Earth®.

  1. Click Export to KML. This option is only available when the input image is georeferenced. The KML Output dialog appears.
  2. Choose one of the following output options, and click OK.
    • One KML with all targets (default): Each layer will maintain its individual properties when combined into one KML file. Enter an output KML filename.
    • One KML per target: Enter a rootname for the KML output files.



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