  The study of bulge morphology and evolutionary history, together with the
associated scaling relations, is essential in studies of galaxy formation and
evolution. Following from our previous work (Pastrav 2020), we present a
detailed structural analysis of a representative sample of nearby spiral and
early-type galaxies taken from the KINGFISH/SINGS survey. The photometric
parameters of bulges are obtained from bulge-disk decompositions using GALFIT
data analysis algorithm. The method and the corrections previously obtained in
Pastrav et al. (2013a,b) are used to derive intrinsic photometric and
structural bulge parameters, corrected for projection and dust effects. We show
the main bulge scaling relations and the black-hole relations, both the
observed and the intrinsic ones, in the optical regime. We find dust and
inclination effects to produce more important changes in the slope and
zero-point of the Kormendy relation for spiral galaxies than those for ETGs,
with bulges of spiral galaxies residing on a steeper slope relation that the
early-type galaxies. We observe that the Kormendy relation in combination with
a threshold in bulge S\'{e}rsic index ($n_{b}$) does not clearly produce an
accurate morphological separation of bulges, while $n_{b}$-bulge-to-total flux
ratio ($B/T$) and $B/T$-stellar mass ($M_{\star}$), can be used to discriminate
between bulges with different morphologies or between early- and late-type
galaxies. We confirm the existence of two distinct intrinsic relations for
bulges of spirals and early-type galaxies, between the bulge luminosity (or
absolute magnitude) and S\'{e}rsic index, and between the mass of the central
black-hole and bulge luminosity, respectively. Within errors, we confirm a
unified intrinsic black hole mass-$n_{b}$ relation for all bulges. The
parameters of all the aforementioned relations are consistent with values found
in other works.
