Radial surface brightness profile along the mid-plane of the edge-on galaxy UGC 00931 in the combined r_deep band of the IAC Stripe 82 Legacy Project data. We plot our data with blue dots, the PSF-convolved model is shown with the solid green curve, and the PSF-deconvolved model is the dashed curve. Lower panel: difference between the observed data and either the PSF-convolved model (black points) or the PSF-deconvolved models (red points). Here we show the result for the rejected set of parameters when the galaxy is modelled (top panel in Fig. A.3). The 2D model clearly does not fit the data.