I would like to create contour of structure in image and need to expand the contour in all directions by 10 pixels. I used edge and imdilate, but got wrong results. Any help or guidance will be appreciable.
[edge_im,th] = edge(image,'sobel'); % Boundary of structure figure(1),imshow(edge_im);
se = ones(10,10); dilate_im = imdilate(edge_im,se,'full'); % Dilate boundary by 10 pixels figure(2),imshow(dilate_im);
[expand_im,th]=edge(dilate_im,'sobel'); % Boundary of expansion of aperture figure(3),imshow(expand_im);
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