How to stretch the cells of a matrix ?

Hello all, Let's say I have a 30*30 matrix and I want to display an image of the data in it, but I want the image to be for example 2 times longer than wide. I just want to "stretch" the cells in the x-direction. The ratio between the length and the width would be given by the ratio between Lx and Ly. I found nothing related to this using the image function in Matlab.

Thanks.

Answer 1

[Jan]

img = rand(30, 30, 3);
figure('Menubar', 'none', 'Toolbar', 'none');
axh = axes;
image(axh, img);
axh.DataAspectRatio = [1,2,1];

[Alexandre Briclot]

Thank you very much !

Answer 2

[Pippa Williams]

Another (perhaps simpler) option if you have R2015a or later: repelem ("repeat elements") will also do.