Example of an adaptive binning of NGC863 using S/N([S II]) = 10 as target. The first figure represent the map numbers (map_N) from Li et al. (2023) algorithm. The second figure is the segmentation map obtained from our algorithm, where the bin index goes from k = 1 to N_bins. The third figure is a close-up of the segmentation map plotting the borders of the bins over the Hα map. It is noticeable that the H II regions, whose S/N is higher, are not binned, maintaining the structure pixel by pixel, and the bins are getting bigger as we move out of the H II regions.