Table 1 Various statistical descriptors

$d_1=\sum _{m=0}^M\sum _{n=0}^{N}H\left(\mathrm{\Phi }\right(m,n\left)\right)\mathrm{.I}{(m,n)}^2$

$d_2=\sum _{m=0}^M\sum _{n=0}^{N}H\left(\mathrm{\Phi }\right(m,n\left)\right)\mathrm{.I}(m,n).log\left(I\right(m,n\left)\right)$

$d_3=\sum _{m=0}^M\sum _{n=0}^N\frac{H\left(\mathrm{\Phi }\right(m,n\left)\right)\mathrm{.I}(m,n)}{1+|m-n|}$

$d_4=\sum _{m=0}^M\sum _{n=0}^{N}H\left(\mathrm{\Phi }\right(m,n\left)\right).{(m-n)}^2\mathrm{.I}(m,n)$