How do I add the MathWorks logo to an image in MATLAB?

Question

I had asked in a previous question about how to reproduce an image in MATLAB. Now, I want to modify that image by removing the word "Math" and replacing it with the MathWorks logo.

I'm having trouble figuring out how to add the logo to the figure and adjust its position.

Here's the code I have been trying to use to add the logo to the figure:

L = 40*membrane(1,25);

logoFig = figure('Color',[1 1 1]);
logoax = axes('CameraPosition', [80.5 50 42.5],...
    'CameraTarget',[26 26 10], ...
    'CameraUpVector',[0 0 1], ...
    'CameraViewAngle',9.5, ...
    'DataAspectRatio', [1 1 .9],...
    'Position',[0 0 1 1], ...
    'Visible','off', ...
    'XLim',[1 51], ...
    'YLim',[1 51], ...
    'ZLim',[-13 40], ...
    'parent',logoFig);
s = surface(L, ...
    'EdgeColor','none', ...
    'FaceColor',[0.9 0.2 0.2], ...
    'FaceLighting','phong', ...
    'AmbientStrength',0.3, ...
    'DiffuseStrength',0.6, ...
    'Clipping','off',...
    'BackFaceLighting','lit', ...
    'SpecularStrength',1.1, ...
    'SpecularColorReflectance',1, ...
    'SpecularExponent',7, ...
    'Tag','TheMathWorksLogo', ...
    'parent',logoax);
l1 = light('Position',[40 100 20], ...
    'Style','local', ...
    'Color',[0 0.8 0.8], ...
    'parent',logoax);
l2 = light('Position',[.5 -1 .4], ...
    'Color',[0.8 0.8 0], ...
    'parent',logoax);

%http://www.mathworks.com/products/matlab/demos.html?file=/products/demos/shipping/matlab/logo.html