Import multiple orthophoto bands in model builder

[MihaKlemencic]

Hi!

I'm looking for solution to create a script for importing only one band from orthphotos, then reclassifying into 2 classes, subtracting them and export as polygons.

Orthophotos are from 2011 and 2014 and are stored in 2 directories (for example D:\2011\ and D:\2014\). Overlapping orthophotos have same name except the new ones have letter "A" at the end - the old one has name E063462.tif - Band_3 and the new one E063462A.tif - Band_3. The script should find identical orthophotos, load only one band and then run processes as it is shown in picture below.

[DanPatterson_Retired]

So the question is... does the model work?  If it does you can export the model to a python script.  If it doesn't, then you will have to provide more information.

[MihaKlemencic]

Model works.

Instead of manually adding bands to TOC and linking them in model builder there should be some code to do it automatically and perform further steps.

[XanderBakker]

There are two paths you can go IMHO, implement iterators in ModelBuilder:

A quick tour of using iterators—Help | ArcGIS for Desktop

... or use Python code to solve it, using Create lists of data—Help | ArcGIS for Desktop