How do i calcualte Image Fidelity Using this equation?

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Mohd Shafiq 2020-3-25

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回答： Vimal Rathod 2021-1-15

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"

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Answer 1

Vimal Rathod 2021-1-15

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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.