How to Plot a matrix?

Hi, I have a matrix that I want to visualize it. So the figure have a legend showing the greater values is with which color and vise versa.

thanks

Answer 1

[Seyhan Emre Gorucu]

I didn't understand your question exactly but scatter might be solution for you. You need a x vector y vector and a matrix. Google matlab scatter. I can help better if you have a simple example and if you can elaborate better.

Answer 2

[Richard Zapor]

Visualizing a matrix for relative magnitudes can be done with surf or I like imagesc.

A=randi(256,[64 128]);
figure;imagesc(A)

You can threshold and change from color to grayscale.

figure;imagesc(A,[0 192]);colormap gray;axis equal;axis tight