How can I display a 2D binary matrix as a black & white plot?

Question

I have a 2D binary matrix that I want to display as a black and white plot. For example, let\'s say I have a 4-by-4 matrix as follows:

1 1 0 1
0 0 1 0
1 1 0          


        

Answer 1

I'm not sure if I got your question right, but you may try the image function, like this:

A = [ 1 1 0; 1 0 1; 1 1 1 ];
colormap([0 0 0; 1 1 1 ]);
image(A .* 255);