1. A method for processing a frame of interest in a sequence of successively acquired frames of digital images of an object in digital radiation imaging without requiring motion estimation, the method comprising the steps of: generating a multi-scale representation of the successively acquired frames of the digital images of the object, the multi-scale representation including detail images of the object at different scales; subjecting the multi-scale representation of the frame of interest to temporal filtering by adding at least one correction image of the object to a detail image or detail images of the object in the multi-scale representation corresponding to the frame of interest in order to reduce noise in the frame of interest; wherein the at least one correction image of the object is computed by combining clipped difference images of the object obtained as a difference between the multi-scale representation of the frame of interest and the multi-scale representations of a selection of other frames of digital images of the object in the sequence.