ERDAS IMAGINE is a professional remote sensing software used for processing and analysing geospatial data. This guide covers the essential workflow for beginners, from initial setup to advanced image analysis. 1. Getting Started: Interface & Setup
The software uses a ribbon-based interface similar to Microsoft Office, where tools are organised into dynamic tabs. The Ribbon : Contains all major functionality. Tabs like change based on your active layer. Contents Pane
: Located on the left; shows all open viewers and data layers. Quick Access Toolbar
: Customisable toolbar at the top left for your most-used tools. Set Directories File > Preferences > User Interface & Session
to set your default "Data" and "Output" directories. This saves time during file browsing. 2. Core Data Operations Loading Images File > Open > Raster Layer . In the dialog, use the Raster Options tab to choose how the image fits (e.g., "Fit to Frame"). Band Stacking
: To combine individual spectral bands into one multispectral image, use Raster Tab > Spectral > Layer Stack . This is essential for creating color composites. Georeferencing : If your image lacks spatial data, use the Geometric Correction
tool to add Ground Control Points (GCPs) and link them to known coordinates. Layer Management : Right-click layers in the Contents pane to Raise to Top View Metadata 3. Image Analysis & Enhancements Band Combinations
: Change how an image looks by assigning different bands to the Red, Green, and Blue (RGB) "color guns". Natural Color : Often 3, 2, 1 (for Landsat 7/8). False Color (Vegetation) : Often 4, 3, 2 or 5, 4, 3. Vegetation appears bright red. Inquire Cursor
to open the Inquire Cursor. This crosshair tool shows the exact pixel location (X, Y) and its Digital Number (DN) value. NDVI Calculation : To identify healthy vegetation, go to Raster Tab > Unsupervised > NDVI
. The software will automatically calculate the index using the required NIR and Red bands. 4. Advanced Processing ERDAS IMAGINE Software Guide - Remote Sensing - Scribd
ERDAS IMAGINE Software Guide. This document provides a summary of a lab introduction to the ERDAS IMAGINE remote sensing software.
Erdas Imagine Lab Practical Guide | PDF | Icon (Computing) - Scribd
ERDAS IMAGINE is a leading professional-grade remote sensing and image processing software used primarily for extracting information from geospatial data erdas imagine software
. It is highly regarded for its robust power and depth but is often cited for having a significant learning curve. Key Strengths Comprehensive Toolset
: It provides an extensive suite for displaying, editing, and analyzing multispectral imagery, LiDAR point clouds, and radar data. Intelligent Viewer
: The software's viewer can handle a vast range of satellite formats (Landsat, Sentinel, Worldview, etc.) and automatically deliver canned composites. Spatial Modeler
: This graphical environment allows users to build complex processing workflows without heavy coding, making advanced spatial modeling more portable. Advanced Analytics
: It excels in high-end tasks like automatic image registration (AutoSync), change detection (DeltaCue), and supervised/unsupervised classification. GIS Geography Common Criticisms Steep Learning Curve
: Reviewers frequently mention that the sheer number of tools and configuration options can be overwhelming for beginners or GIS users transitioning to advanced raster analytics. Dated User Interface
: While functional, the UI is often described as feeling slightly rigid or dated compared to more modern geospatial platforms. Licensing Costs
: Positioned as an enterprise solution, the cost can be a significant barrier for small organizations, independent consultants, or individuals. Interface Quirks
: Some users have noted minor annoyances with interface defaults, such as non-standard keyboard shortcuts for cycling through input fields. Typical Use Cases ERDAS Imagine - Earth Resources Data Analysis System
Introduction
ERDAS Imagine is a powerful software tool used for geospatial data processing, analysis, and visualization. Developed by Hexagon Geospatial, ERDAS Imagine has been a popular choice among geographers, cartographers, remote sensing scientists, and GIS professionals for over three decades. The software is widely used in various industries, including environmental monitoring, urban planning, natural resource management, and disaster response.
History
ERDAS Imagine was first released in 1980 by ERDAS (Earth Resources Data Analysis System), a company founded by Dr. Douglas W. Cripe, a renowned expert in remote sensing and geographic information systems. Initially, the software was designed to process and analyze remotely sensed data, particularly satellite imagery. Over the years, ERDAS Imagine evolved to incorporate new technologies, such as geographic information systems (GIS), global positioning systems (GPS), and digital photogrammetry.
Key Features
ERDAS Imagine offers a wide range of features and tools for geospatial data processing, analysis, and visualization. Some of the key features include:
Applications
ERDAS Imagine has been used in a variety of applications across different industries, including:
Case Study: Flood Mapping with ERDAS Imagine
In 2010, the Red River Valley in North Dakota experienced severe flooding, affecting thousands of acres of agricultural land and displacing hundreds of residents. ERDAS Imagine was used by the North Dakota State Government to analyze satellite imagery and create flood maps.
Using ERDAS Imagine, analysts processed and analyzed satellite imagery from multiple sources, including the US Geological Survey (USGS) and the European Space Agency (ESA). The software was used to:
The flood maps created with ERDAS Imagine were used by emergency responders and decision-makers to prioritize relief efforts and allocate resources.
Conclusion
ERDAS Imagine is a powerful software tool for geospatial data processing, analysis, and visualization. With a rich history spanning over three decades, the software has been widely used in various industries, including environmental monitoring, urban planning, natural resource management, and disaster response. As the demand for geospatial data analysis and visualization continues to grow, ERDAS Imagine remains a popular choice among professionals and organizations around the world.
ERDAS IMAGINE: The Industry Standard for Geospatial Data Authoring ERDAS IMAGINE is a professional remote sensing software
ERDAS IMAGINE is a world-leading geospatial data authoring system designed specifically to extract information from imagery. Since its inception in 1978, it has evolved from a pioneering digital remote sensing tool into a comprehensive platform that combines image processing, photogrammetry, LiDAR analysis, and basic vector analysis into a single workflow. Historical Evolution
The software’s journey began at Georgia Tech, making it one of the earliest digital remote sensing packages available.
Early Days (1978–1980s): Launched as ERDAS 4, the software initially ran on microcomputers using hard drives roughly the size of small washing machines.
Acquisition and Growth: The company operated independently until its acquisition by Leica Geosystems in 2001, later becoming part of Hexagon Geospatial .
Modern Era: Today, it operates as a native 64-bit application featuring a modern ribbon interface to streamline professional imagery processing for both beginners and experts. Core Functionalities and Specialized Tools
ERDAS IMAGINE is primarily raster-based but has increasingly integrated vector processing capabilities. Key functions include: Remote Sensing and GIS in Natural Resource Management
Often sold as an add-on, ATCOR defines ERDAS's lead over free alternatives. It converts raw "Top of Atmosphere" radiance into true surface reflectance, removing haze, aerosol effects, and water vapor absorption.
ERDAS IMAGINE is considered a high-end, professional-grade tool. Its primary competitor is ENVI (Environment for Visualizing Images) by NV5 Geospatial.
Other competitors include open-source alternatives like QGIS (with GRASS GIS plugins), though these generally lack the seamless high-volume production environment of ERDAS.
This adds advanced classification tools. You gain access to:
The NITF (National Imagery Transmission Format) support is critical. Analysts use ERDAS Imagine to fuse SAR (night/cloud coverage) with EO (Electro-Optical) imagery. The "Stereo Analyst" tool extracts 3D coordinates of targets from satellite stereo pairs for precise targeting.