IMG1 = imread('cameraman.tif');
IMG2 = imread('flamingos.jpg');
%size(IMG1), size(IMG2)
[X1, Y1] = meshgrid(1:size(IMG1,2), 1:size(IMG1,1));
[X2, Y2] = meshgrid(1:size(IMG2,2), 1:size(IMG2,1));
Z1 = 6*ones(size(X1));
Z2 = 5*ones(size(X2));
%size(X1), size(Y1), size(Z1)
%size(X2), size(Y2), size(Z2)
surf(X1, Y1, Z1, 'CData', IMG1, 'edgecolor', 'none');
hold on
surf(X2, Y2, Z2, 'CData', IMG2, 'edgecolor', 'none');
hold off
view(3)
The above is what you asked for. However, a lot of the time it is not what you would want. If you want a surface plot, you would typically want the image to follow the contours of a surface. The easiest way to do that is to use warp() https://www.mathworks.com/help/images/ref/warp.html
