Overlaying surface with Image using GUIDE

Hello,

I am trying to overlay a graphic (surface S) over an image I found on the web using GUIDE. The surface appears on the top left very small... I tried changing the xlim et ylim but with no success. This is the code I used (I tried converting cm to pixels so that the surface and the image have the same scale). I resized the image to fit the maximum length and width of the surface too. S is the matrix I used S=[2.3 2.9 3 3 3 4]. Could you please help me out?

if true
              axes=handles.body;
              xlim([0 (L.*96)/2.56]); %Length
              ylim([0 (W.*96)/2.56]); %Width
              img=imread('thigh1.jpg');
              img=imresize(img, [(L.*96)/2.56 (W.*96)/2.56]);
              I=image(img); 
              hold (handles.body,'on');
              s=(S.*96)/2.56;
              surf(s,'FaceAlpha','interp','AlphaDataMapping','scaled','AlphaData',gradient(s),'FaceColor','interp');

                view(0,90);  
                hold (handles.body,'off');  
                I.AlphaData=0.5;

end

Thank you in advance

Answer 1

[Image Analyst]

See this: https://www.mathworks.com/matlabcentral/fileexchange/29485-meshcanopy

[theofania giota]

Hello,

the surface is actually a 2D heatmap, if I use transparency would it still be able to visualize the image and the surface in 2D?

Thank you

[Image Analyst]

Not sure what you want. What I showed was a 2-D image with a 2.5-D surface over it all rendered in "3-D". What do you want? Or do you just want to visualize one image over the top of another but all in 2-D, not a 3-D rendering like above? Like this http://www.mathworks.com/matlabcentral/answers/104889-how-to-overlay-a-foreground-image-over-a-background-image

[theofania giota]

Hello, I am trying to visualize a surface that is projected only in 2D with the view (0.90) command and put an image in the background... When I tried overlaying the graphic and the image i got that:

The graphic is small in the corner ...

Thank you