Playing with Existing Models
When you downloaded the tools, you should also have obtained a small
annotated dataset, which can be used to experiment.
After building the models, try the following experiments to familiarise 
yourself
with the model building and search processes.
- Edit the SMD file, changing the "Colour:" to "RGB".  Rebuild the model and 
display it.
 
- Edit the SMD file, increasing the "n_pixels:" variable to 20000.  Rebuild 
the model and display it.
 
- When searching with am_markup, try displacing the model by increasing 
amounts before
    running the search.  Estimate the size of the region for which it converges 
correctly.
 
- Try loading in images of other faces - how well does the model match?
 
- What happens when the number of modes used in search is reduced (on the 
Search panel)?
 
Now try building a new model.