how do I use Alphadata commands for image on GUIDE

Dear Matlab expert group,

I am relatively new to matlab image processing and guide. I am struggling to use alphadata commands for image processing purposes in GUIDE. Please can someone share any information about the same. I have attached the initial figure and matlab file for your information. I was able to select an image and display it on an axes using the following

              [fileinfo pathinfo] = uigetfile('*.*','File Selector');
              image = strcat(pathinfo, fileinfo);
              jpgimage = imread(image);
              axes(handles.axes1);
              x = imshow(jpgimage);

I am failing to add alphadata commands for a pushbutton that can be used to create a layer of alphadata on the existing image. I have put the commands below.

                >> q = zeros(size(jpgimage));
                >> q(:,:,:)=0.6;
                >> PSF = fspecial('disk', 5);
                >> Blurred = imfilter(q, PSF,'circular','conv' );
                >> [r,c,~] = size(jpgimage);
                >> [X Y] = meshgrid(1:r,1:c);
                >> Z = mvnpdf([X(:) Y(:)], [r c]./2, diag(50.*[r c]));
                >> Z = (Z-min(Z(:)))./range(Z(:));
                >> Z = reshape(Z',[c r])';
                >> fh = figure;
                >> imshow(jpgimage,'Border','tight'), hold on
                >> hImg = imshow(q,'Border','tight'); hold on
                >> set(hImg, 'AlphaData',Z);

Thanks a lot for the help.

Kind Regards, Vidya

Answer 1

[Image Analyst]

See Steve's blog: http://blogs.mathworks.com/steve/2009/02/18/image-overlay-using-transparency/

or this: http://www.mathworks.com/matlabcentral/answers/104889-how-to-overlay-a-foreground-image-over-a-background-image

Answer 2

[vidya]

Dear Image Analyst,

Please can you share basic steps to perform alphadata action on image in a graphic user interphase environment. Thanks a lot for the links.

Kind Regards,

Vidya

[Image Analyst]

I don't know what that environment is. Don't Steve's commands work in that environment?