Logarithm of the B/D flux ratio in the g, r, and i-band versus morphological type (expressed as T-type) for the galaxies of the sample contained in the Nair & Abraham (2010) catalogue. Big crosses and big empty circles mark the median log  (B/D) for each T-type value for unbarred and barred galaxies, respectively. The bottom right-hand panel shows the median log  (B/D) in each band for each T-type value. Error bars represent the 95% confidence level of the median value for the distribution of B/D values at each T-type value. The blue solid straight line marks B/D = 0.5, that we have used to separate early from late-type galaxies.