Obscured luminosity fraction as a function of Σ_SFR (using F1500W sizes) and F1500W effective radius (middle) for the F1500W spatially resolved sample (the filter FWHM is 0.5 arcsec). At a given mass, f_obsc increases with Σ_SFR and decreases with rest-frame mid-IR (dust) radii. Right panel shows SFR versus F1500W size for the same sample. The near constant SFR with R_e, F1500W in each mass bin indicates that the relationship between f_obsc and size is independent of SFR. Individual measurements are shown with small symbols and colour-coded in three stellar mass bins with the same number of galaxies, shown in the legend. In each mass bin, average values in bins of the parameter on the x axis are shown with larger symbols with the corresponding shape and colour of the mass bin. Pearson correlation coefficients (ρ) are shown in the corners of the plots with corresponding colours of each mass bin. Linear fits to the average values of f_obsc versus log(Σ_SFR) are shown in the left panel. The fit parameters are in Table 3.