1. A method for processing signals collected by pixels of a detector, each pixel being able to collect a signal under the effect of radiation to which the detector is subjected, comprising: identifying a pixel, termed the affected pixel, collecting a signal greater than a threshold, defining at least one adjacent pixel of the affected pixel, and, for each adjacent pixel: selecting a first comparison group associated with said affected pixel and a second comparison group associated with said adjacent pixel, each comparison group comprising a plurality of pixels, said first and second comparison groups not comprising any pixel in common, determining a signal collected by each of the comparison groups, the signal collected by each of the comparison groups corresponding to a value representative of the signals collected by the various pixels of said each of the groups, comparing the signals collected by each comparison group, so as to determine the comparison group that has collected the highest signal, declaring said affected pixel as winning pixel if the group associated with the affected pixel exhibits a collected signal greater than the signal collected by each group associated with an adjacent pixel of said affected pixel.