Results of image-plane retrieval: intensity profiles of the TW Hya protoplanetary disk at 3.1 (top-left), 2.1 (top-right), 1.3 (bottom-left) and 0.87 mm (bottom-right). The images from which they were generated were smoothed to have the resolution of circular beams (0.05″ × 0.05″; PA = 0.0°) (see Table 1). The bottom left corner of each panel shows the profile of the synthesized beam. The shaded blue region represents the uncertainty in the emission, and were calculated with Eqs. (C.1) and (C.2). The 1.3 and 0.87 mm intensity profiles contain the outer-disk substructures D79 and B86 which are shown with black dotted and solid lines respectively. The 3.1 and 2.1 mm intensity profiles do not reveal any outer-region emission to the noise level. The R₆₈, R₉₅ and R₉₉ disk size estimates are shown with gray columns. We do not show the R₉₉ disk size for the 2.1 and 3.1 mm profiles because it coincides with R₉₅ due to lower surface brightness levels.