Modules Description
ENVI DEM Extraction Module ENVI DEM Extraction Module enables fast and easy creation of spatially accurate elevation models (DEM) from images. The module provides a flexible and easy to use workflow for modeling the relief of aerodynamic and satellite images, including those made ​​with ASTER, IKONOS, OrbView – 3, QuickBird and SPOT 1-5.
ENVI Orthorectification Module The method in this module is based on a mathematical model developed from the best orthophoto experts in the world – Spacemetric.
ENVI Orthorectification Module allows the use of multiple types of data, including both from other sensors. Collection and editing of control points using the module is easy and fast. There is also the option points to be associated with the pixel whose coordinates are known. Control points can be entered manually or use ready set of points (from previous studies of the user).
ENVI Feature Extraction Module (ENVIFX) ENVI Feature Extraction Module (ENVI FX) provides powerful tools for preparation, reading and analysis of data derived from the images. Designed specifically for GIS users and also integrates easily with ArcGIS through easy to follow steps that help users to derive maximum data from their images.
ENVI Atmospheric Correction Module Not always the satellites and aerial images are captured in perfect weather conditions. Thanks to the ENVI Atmospheric Correction Module, users can minimize atmospheric interference in the images and improve their performance.
 ENVI NITF Module  Data format National Imagery Transmission Format (NITF) allows the combination of images, graphics and metadata into a single file. This is the preferred standard for data of many governments around the world, as well as NATO.

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