3-d plot

I have two matrixes: I is a grayscale image and BW is the binary image. for the regions that have area>50 in BW, I want to calculate the mean value of the those regions in I. I then want to show these mean values for each region as bar plot on the grayscale. Any suggestion?

I used the following code to show the mean value of each region on the image but dont know how to show them as bar.

% create a synthetic image
I = propsSynthesizeImage;

%a create binary image
BW = I >0;

%find the centroid of each region
s = regionprops(BW, I, {'Centroid'});

imshow(I)
title('Weighted (red) and Unweighted (blue) Centroid Locations');
hold on
numObj = numel(s);

%plot the centeroid of each region on the image
for k = 1 : numObj 
  plot(s(k).Centroid(1), s(k).Centroid(2), 'bo');
end
hold off

s = regionprops(BW, I, {'Centroid', 'PixelValues', 'BoundingBox'});
imshow(I);
title('Standard Deviation of Regions');
hold on

%calculate the mean value of each region and plot them on the image
for k = 1 : numObj
    s(k).Mean= mean(double(s(k).PixelValues));
    text(s(k).Centroid(1),s(k).Centroid(2), ...
        sprintf('%2.1f', s(k).Mean), ...
        'EdgeColor','b','Color','r');
end

hold off

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup

[Hassan]

thanks Walter for the command. I did some changes in the format but Im not sure if they were what you meant.