image processing - How to make a diagonal divider of zeros and ones using Matlab?

Question

This is the result that I want. The number of bits resolution are 256 x 256.

// assign default background to white.
img = ones(256, 256);

Example Result:

0 1 1 1
0 0 1 1
0 0 0 1
0 0 0 0

Is there a way that I can use the zeros() and ones() function in MATLAB to achieve this result? How should I do the looping?

The result is something that eye() function can do, but it only do a diagonal lines. I want a diagonal lines that separate zeros and ones.

Answer 1

You are looking for the triu function

img = triu( ones( 256 ), 1 );