1. A method of estimating interference present in an Orthogonal Frequency Division Multiplexing wireless communication system, comprising: receiving signals from a wireless communication network at a plurality of time-frequency positions; estimating an interference measure for signals received at each of two or more time-frequency positions; performing at least one image processing operation to process the estimated interference measures as pixels in a two-dimensional image; and identifying, in response to the image processing operation, at least one region in the time-frequency space having related interference parameters.