Desktop VisualizeR will be able to easily slice a photo.
This is a add-on for Desktop VisualizeR. This add-on cuts the suitable image for the widget of its size and location from the specified photo. Before using this add-on, you must run DVRSizeConfigTool (Free) to help slicer add-on can measure accurate image size. Requires Desktop VisualizeR 1.1.3 or later.
*Free Trial: DVRAddOnsTrial