- SBD: see [homepage](https://9bc0b5eb4c18f1fc9a28517a91305702c68a10ae.googledrive.com/host/0ByUkob0WA1-NQi1sNlg4WkJQbTg/codes/SBD/download.html) or [direct download](http://www.eecs.berkeley.edu/Research/Projects/CS/vision/grouping/semantic_contours/benchmark.tgz)