Validation results of completeness (left column, top sub-panel), percentage of spurious sources (left column, bottom sub-panel), and flux density comparison (right column) between the input sources and the recovered ones by flat (blue series) and spectral (red series) MultiPoSeIDoNs, the MTXFs with a detection limit of 60 mJy (cyan series), and with a 4σ detection limit (orange series). The frequencies are 143 (top panels), 217 (middle panels), and 353 GHz (bottom panels) for a 30° Galactic cut. The dotted grey vertical line is the 90% completeness flux density limit (177, 152, and 304 mJy for 143, 217, and 353 GHz, respectively) for the second Planck catalogue of compact sources (Planck Collaboration XXVI 2016).