Two examples of synthetic column density maps of a Plummer model filament with p = 1.7 embedded in a structured background with a cirrus-like P(k)∝k^−2.7 power spectrum (see text). (a) Model image “observed” at a HPBW resolution corresponding to . (b) Model image “observed” at a resolution , corresponding to the filament radial profile shown in Fig. 3a. In both panels, positional offsets are given in units of the intrinsic HP width of the model filament, .