how to show points on image in matlab?

Question

i have some pixel points lets say p1(1,1) and p2(1,10).......and so on

i want to display these points on image in any color. how to do this?

Answer 1

You can just use plot:

plot(p1(1), p1(2), 'ko');  % Small circle point in black.
plot(p1(1), p1(2), 'r.');  % Small dot in red.