Summary
==============
Brief summary goes here...

Requirements / Dependencies
==============
* the source code was developed in Matlab 8.0

Do annotations
==============
`
% 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 );  
`