Demonstrating reinsertion of a removed unresolved source. The background shows a LoTSS-DR2 intensity image, the black rectangle indicates our ground truth region encompassing the focussed radio component (red square) and its related components (red). The green markers indicate the locations of unrelated radio components. Components removed by the GBC are shown as ‘x’s. Sources that fall within the convex hull (solid red line) around the five-sigma emission of the radio components within the predicted region will be reinserted (a ‘+’ on top of an ‘x’).