MATLAB: Reverse of Normalization

Question

G is a mtrix of integers of size (128X128) i normalized it using this method:

Gnorm = (G – Gmin) ./ (Gmax) – Gmin); then used imhist: [P X]=imhist(Gnorm,72);

now i want to get the actual values of X found in G.

would you help me on this please? Thank you.

Answer 1

A simple bit of algebra...

Gorig = X * (Gmax - Gmin) + Gmin;