Reconstruction of a single source. Comparison between the ground truth and the performances provided CLEAN, multiscale CLEAN, constrained maximum entropy (MEM_GE), an interpolation/extrapolation algorithm (uv_smooth_VSK), and a version of CLEAN based on feature augmentation (u_CLEAN). First two rows: Circular Gaussian source. Second two rows: Loop-shaped source. Third two rows: Elliptical source. The corresponding imaging parameters are listed in Table 1.