Figure 3
From: Evidence for the intrinsically nonlinear nature of receptive fields in vision
Brightness perception curves (average over all observers) show “crispening” at the surround luminance level when the background is uniform (a), but the phenomenon disappears for salt and pepper background (c). A model based on the INRF that uses Gaussian kernels for m and w qualitatively replicates both cases (b,d) with a fixed set of parameters, which is not possible with a DoG, linear RF formulation.
