Find a point of intersection of two 2D matrices.

How would i find the point of intersection of two 2D data matrices. Neither originate from equations of lines. i want the (x,y) coordinate where they intersect

[the cyclist]

I don't understand what "point of intersection of 2D data matrices" means. Can you please give an example?

[John D'Errico]

What is a 2-d data matrix? The crystal ball is so foggy today. The new crystal balls are anti-fogging, but mine is too old. Even the official deck of MATLAB tarot cards gives me nothing.