If the goal of your intelligent system is classification, you might have some options available in ENVI. ENVI's implementation of Neural Network processing is pretty straightforward, so I am not sure that it will help you, but it's worth a shot. You could try Decision Tree, but it does not use a machine learning algorithm to arrive at its decisions. The new Support Vector Machine option does, though. Anything beyond those three options would involve writing custom machine learning and/or genetic algorithms in IDL, C, FORTRAN, JAVA, or some combination thereof.