ENVI: Instructions for converting ENVI format classification maps to GEOTIFF format

[1] Open the ENVI format classification image, such as image 2003; at this point, the image's save format is ENVI Classification, which can be checked by editing the image's header file (Edit Header). The method is to right-click on 2003 in the Available Bands List, and from the pop-up menu select Edit Header, as shown in the image below;

[2] In the Header Info dialog box, select TIFF from the File Type dropdown list and click OK. Afterward, the icon for 2003 changes, as shown below;

[3] In the ENVI main menu, select File->Save File As->TIFF/GEOTIFF, choose the output location in the dialog box, click OK to finish.