ENVI Tutorials

These step-by-step tutorials are designed to help you become familiar with features and capabilities of ENVI. ENVI Classic tutorials and associated data files are available from Technical Support for customers with older versions of ENVI.

ENVI – Classification Tutorial 1: Create an Attribute Image

ENVI – Classification Tutorial 1: Create an Attribute Image

2/13/2017

This tutorial is the first in a two-part series about preparing data for image classification. It illustrates the concept of data fusion by creating an image for classification that consists of different attributes. This can potentially improve classification accuracy.
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ENVI – Classification Tutorial 2: Collect Training Data

ENVI – Classification Tutorial 2: Collect Training Data

2/13/2017

This tutorial is the second in a two-part series about preparing data for image classification. It describes how to define regions of interest (ROIs) that represent truth data for supervised classification.
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ENVI – Custom Tasks

ENVI – Custom Tasks

2/13/2017

For ENVI 5.4 and later. This tutorial describes how to create a custom task using the ENVI application programming interface (API). The custom task in this tutorial creates vegetation indices from Sentinel-2A Level 1C imagery.
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ENVI – Generate Point Clouds

ENVI – Generate Point Clouds

9/9/2015

Learn how to generate point clouds from satellite stereo imagery and how to view the point clouds in the ENVI LiDAR application. You must have a license for the ENVI Photogrammetry Module to run this tutorial.
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ENVI Classic - Rigorous Orthorectification

ENVI Classic - Rigorous Orthorectification

9/9/2015

Learn how to create an orthorectified mosaic from two QuickBird images. You must have a license for the ENVI Photogrammetry Module to run this tutorial.
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ENVI - Burn Indices

ENVI - Burn Indices

10/22/2014

For ENVI 5.2. This tutorial shows how to create various burn index images from Landsat 8 imagery, using the May 2014 San Diego County wildfires as a case study.
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ENVI - EO-1 Hyperion Vegetation Indices

ENVI - EO-1 Hyperion Vegetation Indices

10/22/2014

For ENVI 5.2. This tutorial uses EO-1 Hyperion hyperspectral imagery to identify areas of dying conifers resulting from insect damage. You will learn how to pre-process the imagery and how to create vegetation indices that exploit specific wavelength ranges to highlight areas of stressed vegetation.
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ENVI - Landsat Time Series

ENVI - Landsat Time Series

10/22/2014

For ENVI 5.2. This tutorial shows how to construct a time series from nine Landsat images of Las Vegas, Nevada, each May from 1975 to 2014. You will learn how to use the Series Manager to animate the time series and to export the animation to video.
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ENVI - Hyperspectral Analysis: SAM and SFF Tutorial

ENVI - Hyperspectral Analysis: SAM and SFF Tutorial

10/22/2014

For ENVI 5.2. Learn how to use the Spectral Angle Mapper (SAM) and Spectral Feature Fitting (SFF) methods to compare known reference spectra of geologic minerals to image pixel spectra.
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ENVI - Preprocessing AVIRIS Data

ENVI - Preprocessing AVIRIS Data

12/16/2013

This tutorial demonstrates how to calibrate an AVIRIS hyperspectral image to surface reflectance and how to use FLAASH® to correct for atmospheric effects.
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Data for ENVI tutorials is available on the ENVI resource DVD or from the list below.
ENVI Tutorial Data (1.9 GB)

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