How do i calcualte Image Fidelity Using this equation?

Hi, i am currently doing a project on steganography and i need to know how to apply this formula. The screenshot is taken from "A novel method for digital image steganography based on a new three-dimensional chaotic map"

Answer 1

[Vimal Rathod]

Hi,

You could use "for" loops for doing the summation of the values and storing the P and S variables as 2 dimensional arrays will help you navigate properly according to the given formula.

Or

You could also use Symbolic math toolbox's "symsum" function to find the summation.