Getting error for this code as Index in position 1 exceeds array bounds. Pls tell solution

a=imread('baboon.jpg');
disp(a);
imshow(a);
for i=1:1:512
    for j=1:1:512
        b{i,j,1} = dec2bin(a(i,j),8);
    end
end 
disp(b)

Answer 1

[Guillaume]

Most likely, your image is smaller than 512x512.

If that's not the problem then give us the entire text of the error message.

Answer 2

[Asha D.]

Thank you.