kovesi - a random assortment of computer vision and image processing matlab functions
         downloaded from Peter Kovesi's website at http://www.csse.uwa.edu.au/~pk/research/matlabfns

EdgeLinkLineSegFit - a Edge linking and line segment fitting matlab functions
                     downloaded from Peter Kovesi's website at http://www.csse.uwa.edu.au/~pk/research/matlabfns

sift - a sift implementation by Andrea Vedaldi downloaded from 
       http://vision.ucla.edu/~vedladi/code/sift/sift.html

PhotoPopUp - 

Superpixels - a segmentation code provide by elzenszwalb and Huttenlocher 
              at people.cs.uchicago.edu/~pff/segment/ to create the superpixels