Top panel: peak luminosity per unit frequency as a function of the effective wavelength of the filter in the rest frame for 15 SNe Ib/c in the SDSS sample (with host-extinction corrections). Violet, green, red, dark yellow, and cyan correspond to ugriz filters. Blue, red, and magenta labels correspond to SNe Ib, Ic and Ic-BL, respectively. Bottom panels: cumulative distributions of the peak luminosity per unit frequency in g_{z = 0} (left) and r_{z = 0} (right) bands for SNe Ib (6), Ic (3-4) and Ic-BL (4-3) in the SDSS sample. Shaded areas indicate the uncertainties for F_max. SNe Ic-BL are clearly brighter than SNe Ib and Ic.