This tutorial explains how to display selected categories home page magento extension . The extension decides whether to display category in the magento home page as shown below.
The extension give the customer an option to display selected categories in the home page. The customer can set this from the magento backend based on their need.
System Configuration Settings
From the magento backend this extension provides and option to set the category image width and height. It resize the category image based on the settings.
The extension also provide an option to upload additional banner image and option to display categories in the magento category page instead of the products.