I'm new to Processing and I can't find any information on what I'm trying to do. 

I have a processing sketch loads an xml file and uses it to generate an image which is then saved to disk using save(). I have also managed to get this to work inside of Eclipse using Proclipsing. As I only want to save a single image, is possible to run the sketch from a standard Java application without a GUI? Ideally I would then reuse the sketch with different xml files to generate different images.

Thank in advance for any help.