Abstract: A method of providing media data to devices connected to a communications network is disclosed. The method comprises storing a plurality of media objects, each media object comprising image data. The media objects may be images or video clips. A request is received from a device connected to the network, the request comprising input image data and specifying one of the plurality of stored media objects. At least a portion of the input image data is composited with image data of the specified media object to produce a composite media object, and the composite media object is transmitted to the device. The method may be used with mobile telecommunications networks or over the Internet. An image processing system is also disclosed.