ENVI product documentation is provided in Adobe Acrobat PDF format
ENVI 4.5 Release Notes Contains a brief summary of the known issues and problems corrected in ENVI 4.5.
Getting Started With ENVI This guide describes the general concepts of ENVI and provides overviews of the more commonly used functions of the application.
ENVI Functional Summary Contains a brief summary of ENVI's functional capabilities.
ENVI Installation and Licensing Guide This guide describes how to install ENVI and IDL.
ENVI Zoom User’s Guide Find detailed information on the ENVI Zoom, a new optional interface for ENVI.
ENVI Programmer's Guide The ENVI Programmer’s Guide is designed to assist ENVI programmers by providing sample code and instruction on programming in ENVI.
ENVI Reference Guide All of ENVI’s routines are documented alphabetically in this ENVI language reference guide. Each routine includes a description, the syntax for the routine, its arguments (if any), its keywords (if any), and an example of using the routine.
ENVI Tutorials We provide tutorials designed to lead a new user through the program’s basic and advanced functionality. Included in the 30+ tutorials are: getting started with ENVI, multispectral classification, georeferencing and registration, mosaicking, vector overlay and GIS analysis, NITF, Feature Extraction, map composition, hyperspectral data analysis, DEM and topographic tools, 3D Fly Through, and both basic and advanced SAR processing.
ENVI Modules
DEM Extraction Module User's Guide The DEM Extraction Module enables you to extract elevation data from scanned or digital aerial photos, or images from pushbroom sensors such as ALOS PRISM, ASTER, CARTOSAT-1, FORMOSAT-2, IKONOS, OrbView-3, QuickBird, SPOT or WorldView-1.
FLAASH Module User's Guide ENVI’s atmospheric correction module, FLAASH (Fast Line-of-sight Atmospheric Analysis of Spectral Hypercubes), is a first-principles atmospheric correction modeling tool for retrieving spectral reflectance from hyperspectral radiance images. With FLAASH, you can accurately compensate for atmospheric effects.
Feature Extraction Module User’s Guide ENVI Feature Extraction is a module for extracting information from high-resolution panchromatic or multispectral imagery based on spatial and spectral characteristics.
NITF/NSIF Module User's Guide The ENVI NITF/NSIF Module provides JITC-compliant support for the NITF file format. With the NITF/NSIF Module, ENVI can read and display all compressed or uncompressed NITF version 2.0 and 2.1 and NSIF 1.0 files, as well as legacy NITF 1.1 files, and can write NITF version 2.0 and 2.1 and NSIF 1.0 files.