how to plot rgb image in 3D dimension?

Hi, i want to plot a rgb image in 3D dimension. Z axes is for the color data. Currently, i have something like this

but i don't want the z-line to be plotted, ijust want to see how the surface looks. Maybe something like this

How can i make it? Thanks a lot. Here is my code for now:

img= imread([imdir,filename]);
if size(img,3)>1
    img = rgb2gray(img);
end
[x,y]= meshgrid(1:size(img,2),1:size(img,1));

z = double(img);

min_x = min(min(x));
min_y = min(min(y));
max_x = max(max(x));
max_y = max(max(y));

figure; hold on;
surface(x,y,z,'edgecolor','none');

imgzposition = -100;

surf([min_x max_x],[min_y max_y],repmat(imgzposition, [2 2]),...
    img,'facecolor','texture','edgecolor','none')

view(45,30);

xlabel('x');
ylabel('y');
zlabel('z');

Answer 1

[Image Analyst]

Try sc: http://www.mathworks.com/matlabcentral/fileexchange/16233-sc-powerful-image-rendering from the same guy (Oliver) who brought us export_fig.

You might also check out Sean's meshcanopy: http://www.mathworks.com/matlabcentral/fileexchange/29485-meshcanopy

Answer 2

[Ronnie Reyes]

I know its too long of time. But do you still have the code for your initial work?

[Image Analyst]

This doesn't seem like an answer to the original question, so who are you asking this of? I see code and links to code so I don't know what you're really asking.