Kevin Dale Micah K. Johnson Kalyan Sunkavalli Wojciech Matusik Hanspeter Pfister Image restoration using online photo collections. 2217-2224 2009 ICCV http://dx.doi.org/10.1109/ICCV.2009.5459473 conf/iccv/2009 db/conf/iccv/iccv2009.html#DaleJSMP09