Ratio of the output over input flux densities (S_out/S_in) as a function of the output detection S/N^peak () from PyBDSF, measured as the peak flux density over the local rms noise (left panel), and flux density accuracy ((S_out − S_in)/S_out) as a function of the output flux density (S_out) measured with the aperture photometry methodology (right panel) for simulated sources with sizes ranging FWHM. The distribution of the whole set of simulations is shown as gray symbols with their sliding median and standard deviation in solid and dashed green, respectively.