Learn ENVI software online - Tutorial guide

ENVI (the Environment for Visualizing Images) is a state-of-the-art image processing system designed to provide comprehensive analysis of satellite and aircraft remote sensing data. It provides a powerful, innovative, and user-friendly environment to display and analyze images of any size and data type on a wide range of computing platforms.

With its combined file- and band-based approach to image processing, ENVI allows you to work with entire image files, individual bands, or both. When an input file is opened, each spectral band becomes available to all system functions. With multiple input files open, you can easily select bands from different files to be processed together. ENVI also includes tools to extract spectra, use spectral libraries, and to analyze high spectral resolution image datasets such as AVIRIS, GERIS, and GEOSCAN. In addition to its world-class hyperspectral analysis tools, ENVI provides specialized capabilities for analysis of advanced SAR datasets such as JPL's SIR-C, AIRSAR, and TOPSAR.

ENVI is written entirely in IDL, the Interactive Data Language. IDL is a powerful, array-based, structured programming language that provides integrated image processing and display capabilities and an easy to use GUI toolkit. ENVI is available as ENVI (offering full ENVI command line capabilities) and ENVI RT (the runtime version of ENVI). The only difference between ENVI and ENVI RT is that ENVI RT does not provide user access to the underlying IDL environment. You will not be able to complete the User Function tutorial provided here if you are running ENVI RT.

ENVI tutorials are available online. Here is a link that will help you learn how to use ENVI software. Visit ENVI 3.0 Tutorials

Contents of tutorials:
Introduction

ENVI Quick Start

ENVI Tutorial #1: Introduction to ENVI

ENVI Tutorial #2: Multispectral Classification

ENVI Tutorial #3: Image Georeferencing and Registration

ENVI Tutorial #4: Mosaicking Using ENVI

ENVI Tutorial #5: Vector Overlay and GIS Analysis

ENVI Tutorial #6: Map Composition Using ENVI

ENVI Tutorial #7: Introduction to Hyperspectral Data and Analysis

ENVI Tutorial #8: Basic Hyperspectral Analysis

ENVI Tutorial #9: Selected Mapping Methods Using Hyperspectral Data

ENVI Tutorial #10: Advanced Hyperspectral Analysis

ENVI Tutorial #11: Hyperspectral Signatures and Spectral Resolution

ENVI Tutorial #12: Vegetation Hyperspectral Analysis Case History

ENVI Tutorial #13: Near-shore Marine Hyperspectral Case History

ENVI Tutorial #14: Multispectral Processing using ENVI's Hyperspectral Tools

ENVI Tutorial #15: Basic SAR Processing and Analysis

ENVI Tutorial #16: Polarimetric SAR Processing and Analysis

ENVI Tutorial #17: Analysis of DEMs and TOPSAR

ENVI Tutorial #18: Introduction to ENVI User Functions

Enoy learning ENVI.