ERDAS IMAGINE is an imagery software package used throughout the geospatial community. Designed for image processing, its easy-to-learn, easy-to-use, and comprehensive collection of tools will help you create, manage, and analyze accurate base imagery that enhances all your geospatial information. Note that Imagine 2013 requires a different license server.
The ENVI product family provides a variety of software solutions for processing and analyzing geospatial imagery used by scientists, researchers, image analysts, and GIS professionals around the world.
The GeoGenesis package is an easy-to-use image processing and photogrammetric workstation for Microsoft Windows giving you complete control over your data.
One can currently download and tryout version "lite". A significantly revised version (3.0) is coming out in early 2013 with significantly more features. Purdue can use the software for all campus research and instructional activities, as needed/desired. A key will be required to use the full application.