The present invention relates to a method, device and computer program product for exchanging and processing image data within the context of playing a wireless network based game. A first object is a reference object which is provided by a first party. At least one second object is a comparison object which is provided by at least one second party and the first party and the at least one second party are involved in a comparison procedure over a communication network. Information is established which is indicative of the first object and a task is generated which relates to the first object which is available to the at least one second party. The first party receives the at least one second object from the second party. The second object is compared to the first object, with a value generated based upon the comparison.