How to display a 256x256 image from .mat file?

I have a 256x256 .mat file ''GrayScaleMRI.mat". I want to display it as an image but I am unble to do so. Here's what I tried to do. But it is showing error. Can anyone help me as to how I can do it?

a = load('GrayScaleMRI.mat');
imshow('GrayScaleMRI.mat');

Answer 1

[DGM]

Almost had it.

S = load('GrayScaleMRI.mat');
imshow(S.GrayScaleMRI)

When using the functional syntax for load(), the output argument is a struct containing the variables in the .mat file.

[Aditya Shah]

Yeah. Its working now. Thanks for your help.