1. A device for decomposing images into at least three levels by wavelet transform, comprising: a first decomposition unit executing a first level of decomposition; a second decomposition unit executing higher levels of decomposition by executing a series of processing tasks, said processing tasks are ordered in time by using a sequence of rows; and a routing unit serving to configure the second decomposition unit when a level of decomposition associated with a processing task currently being executed changes relative to a level of decomposition associated with a processing task executed previously, the processing tasks being ordered so that any given row is associated with only a single level of decomposition, wherein the first and the second decomposition units and the routing unit are associated with the device for recomposing images and are configured and realized by a processor configured to execute a computer program code for wavelet transforms, and wherein the routing unit generates a configuration signal at a start of a row, to be sent to the second decomposition unit having processing modules in order to parameterize a data path of said processing modules.