Currently, ENVI's Neural net does not allow you to save and apply the neural net to other datasets. However, in the next release, there is a new Classification Framework API that will allow this and it will be much more flexible. Here is a short description: The ENVI classification framework provides a powerful and flexible way to classify data. You can create and train a classification algorithm (or classifier) on one dataset and apply it to a similar dataset. Traditionally, classifiers are tied to a specific dataset. With the ENVI classification framework, you can train and evaluate the performance of a classifier once and apply it anywhere, including desktop or enterprise environments. You will be able to use Softmax logistic regression or the SVM classifier.

Thanks for this information, that sounds like what I'm looking for. When is the next release scheduled to come out?

We are hoping to have the next release of ENVI out before the end of this year. The exact date is not yet clear. - Peg