KDE technique applied to select the likely size of a cluster during the decontamination procedure. From left to right: scatterplot, 2D Histogram, Gaussian KDE, and 2D density with contours are shown for FSR 1767 (top panels) and VVV-CL160 (bottom panels) fields, which are used as representative. Green and yellow areas are illustrative of over-densities, while the blue areas show lower densities.