Brief summary goes here...
% specify input image
s_img = '/home/user/myimg.jpg';
% specify location where cropped images shall be stored in
s_dest = './butterfly';
% specify cache file
s_cache = './cache-butterflies.mat';
% run the code
selectButterflies('s_img', s_img, 's_dest',s_dest, 's_cache', s_cache );