Q$2)$ Write a code $($Matlab$)$ to find shape descriptors of following four shapes:

Use the following shape descriptors:

Shape histograms $($Pick one of them$)$

Shell model with $60$ shells

Sector $60$ numbers

Shell and sector combination of $10$ shells and $6$ sectors

Shape distributions $($Pick one of them$)$

A$3$

D$1$

D$2$