A=imread('wirebond_mask.tif');
imshow(A)
pause

se=strel('disk',10);
A2=imerode(A,se);
imshow(A2)
pause

se=strel('disk',5);
A3=imerode(A,se);
figure;imshow(A3)
pause

se=strel('disk',20);
A4=imerode(A,se);
figure;imshow(A4)
pause

close all