Completeness as a function of the intrinsic flux density of a galaxy in intensity in the input simulated catalog. The six panels correspond to the same bands as in Fig. 3. The red and blue lines show the results with and without clustering, respectively. The dotted and solid lines correspond to definitions A (a detected galaxy is in the beam of an extracted source) and B (a galaxy is detected only if it is the brightest in the beam of the extracted source) of the completeness described in Sect. 3.5. The vertical dotted line is classical confusion limit computed in Sect. 3.3.