  We compare the optical appearance of a thin accretion disk in the
Simpson-Visser spacetime to the Schwarzschild black hole case in this paper. We
calculate and illustrate the red-shift and observed flux distributions as
viewed by distant observers at various inclination angles. Simpson-Visser
family of metrics create Novikov-Thorne (NT) accretion disks images that nearly
look like a Schwarzschild black hole's NT accretion disk. We have studied also
the embedding diagram, the electromagnetic properties of the accretion disk
such as the temperature and the radiation flux of the energy by the accretion
disk and the accretion efficiency. Compared to the Schwarzschild black hole, we
find that the temperature, radiation flux of the energy, and the luminosity of
the accretion disk increase by increasing the regularization parameter $'l'$.
We conclude that, based on astrophysical observational signatures in the
properties of the electromagnetic spectrum, we can distinguish the wormhole
geometries from the regular black holes (black-bounce) and the Schwarzschild
black hole.
