Computer simulation of aperture-synthesis imaging with the IRBis image reconstruction method: a) uv coverage (see Table 1); b), c) intensity distribution of the two different disk-star computer targets (diameter 11.2 and 16.8 mas) (central star is clippped for display); d), e) intensity distribution of the targets convolved with the point spread function (PSF) of the simulated interferometer; f), g) examples of simulated interferograms (total number of interferograms is 250 per uv point) with 1219 and 573 photons per interferogram and simulated additive detector read-out noise (RON) of 10 electrons (the average value of the RON is subtracted); h) reconstructed images of the two targets for 10 e⁻ RON and different photon numbers ⟨ N ⟩ per interferogram (from 1219 to 152). For each reconstruction, the labels give the corresponding average photon number ⟨ N ⟩ per interferogram, V² S/N, CP error, χ² function (Q₁, Q₂), regularization function (RG1, RG2, RG3, RG4, RG4b), χ², residual ratio ρρ, and the restoration error ρ (see text).