Markers and the imagesc() function in matlab

How do you create a marker on a 2D image that is plott开发者_运维知识库ed using imagesc()? Is it even possible?

You simply want to draw something over your image? Then you can just use hold on.

For example, this will draw a circle at the 10,10 pixel of the image.

imagesc(magic(24));
hold on
scatter(10,10);