A wrapper of the stereo matcher (LIBELAS: Library for Efficient Large-scale Stereo Matching) for OpenCV. http://www.cvlibs.net/software/libelas/

• The output disparity map is x16 scaled, and stored in CV_16S (short type).

• The last parameter of "int border" controls the size of image border for left or right size of occlusions.

    Mat leftim;
    Mat rightim;
    Mat dest;
    
    //set min disparity and max disparity
    StereoEfficientLargeScale elas(0,128);
    
    // we can set additional parameters;
            //elas.elas.param.ipol_gap_width=;
            //elas.elas.param.speckle_size=getParameter("speckle_size");
            //elas.elas.param.speckle_sim_threshold=getParameter("speckle_sim");
    
    //do stereo matching.
    elas(leftim,rightim,dest,100);
  

    @INPROCEEDINGS{Geiger2010ACCV,
      author = {Andreas Geiger and Martin Roser and Raquel Urtasun},
      title = {Efficient Large-Scale Stereo Matching},
      booktitle = {Asian Conference on Computer Vision (ACCV)},
      year = {2010}
    }

The based code is GPL, thus this code is also published under the GNU General Public License.