HOW TO FIND normalized value of an array?

I have 900 elements in an array . How can i find normalized value of that array?

Answer 1

[SRI]

A = imread('cameraman.tif');

Anorm = (A - min2(A))/(max2(A) - min2(A));

[SRI]

To normalize a matrix such that all values fall in the range [0, 1] use