LSB algoritm in matrix

I hide bits in some values in matrix according spesific rule

for example,

A = 10;
X = [20 5 3; 50 40 9; 11 42 15];
[x,y] = size (X);

I will hide S = [0,1,0,0,1]; using LSB in values of 'X' that greater than 'A'

[a,b] = size(S);

by function X1(x,y) = bitset(X(x,y), 1, str2num(S(a,b)));

My quesion is how i can extract the hidden bit from new matrix 'X1'?

I used bitget function, but it gave me error values not [0,1,0,0,1]

Answer 1

[Walter Roberson]

char( bitget(X1(x,y), 1) + '0' )