Saliency map of ASID-FE’s features prediction for a single source. The images are from left to right: original image, saliency for x, saliency for y, and saliency for flux. The colour map indicates the degree of importance assigned to each pixel in the image. The brighter the colour, the more important the pixel is for the prediction. As expected, the network mainly focuses on the source to determine its centre and flux while paying less attention to the edges of the image.