ENVI 4.6: Automated Workflows. Advanced File Support. Enhanced Analysis Tools.
ENVI 4.6 builds on the workflow advances introduced in recent releases by providing additional automated workflows to step you through today’s popular image processing functions. ENVI 4.6 also adds file format support for new image platforms. New enhancements to ENVI add-on modules are also being released concurrently with ENVI 4.6, including updates to the ENVI Feature Extraction Module and the ENVI Flaash Module, now called the ENVI Atmospheric Correction Module.

可以到 ITT Visual Information Solutions     公司网站下载试用：

http://www.ittvis.com/Downloads/ProductDownloads.aspx

该公司官方网站上还有envi专题教程(带实验数据）：

http://www.ittvis.com/ProductServices/ENVI/Tutorials.aspx

官方网站上的专题教程，有分类，数据融合，高光谱，雷达，编程等等，附带pdf手册及相应数据，共1.7G，虽然都是英文的，但是质量相当棒，免费比国内编的书好很多