ENVI 4.1
ENVI 4.1 delivers spectral processing and information extraction tools, updated support for file formats, orthorectification capabilities and numerous ease-of-use improvements. Version 4.1 builds on the product’s spectral tools with Spectral Angle Mapper (SAM) Target Finder with BandMax Wizard, useful when targets and backgrounds are very similar, or where the target is hidden or small relative to the image’s pixel size. The wizard also automatically finds the most relevant bands from a hyperspectral image and reduces false positives. The Sequential Maximum Angle Convex Cone (SMACC) has been added for a more automated approach to traditional spectral image processing workflow, extracting end-member spectra from a spectral image and mapping the subpixel abundances of those materials with more ease.