Extract vegetaion from MSI

Discussion created by proflashrtist on Sep 18, 2012
Latest reply on Sep 21, 2012 by proflashrtist
So, I have been tasked to to this in ArcGIS 10 and I am a bit clueless because it, until this point, hasn't been in my lane of assignments.  The last time I did something like this it was in ERDAS Imagine, not Arc.  So currently I have an orthorectified image, correct projection for the area I am working in, and all the .shp's /.lyr's I need IE:  Roads, Hydrology, etc.  I just don't know where to begin I guess and I haven't found a tutorial or anything relating to it which is why im reaching out here to see if anyone has worked this before.