Question

When does the degradation model satisfy position invariant property in image processing?

Answer 1

An operator having input-output relationship g(x,y)=H[f(x,y)] is said to

position invariant if H[f(x-,y-_)]=g(x-,y-_) for any f(x,y) and and _.

This definition indicates that the response at any point in the image depends only

on the value of the input at that point not on its position.