Software

QPBO + P/I (from CVPR '07 paper)
Please go to Vladimir Kolmogorov's webpage to get the latest version.
Various Matting Methods (CVPR '09 paper)
Please visit project page maintained by Christoph Rhemann
Optimizing Sparse HigheroOrder Clique MRFs (CVPR '09 paper)
we plan to make this code available soon

Data

Alpha Matting benchmark - see project page
Bayesian Color Constancy (CVPR '08) - see project page
MRF example problems from CVPR '07 QPBO-P/I paper will be availbe soon.
Comparison Study of MRF methods (ECCV '06) - see project page
GrabCut Ground truth Segementation Database (Siggraph '04, ECCV '04) - see project page.