Radial profiles of reconstructed images on synthetic data where a ring has been added. The black curves show the radial profiles in the images restored from the original data. The blue and orange curves show the radial profiles in the restoredimages with an additional ring of radius 5 and 10 mas, respectively. The shaded areas show the limits at ±1 standard deviation of the profiles (of the same color). The standard deviation of the profile from theoriginal data is not shown. Top: the ring has a flux of 1% of the total flux at 1.65 μm. Bottom: the ring has a flux of 15% of the total flux at 1.65 μm.