About: http://webisa.webdatacommons.org/228394615

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In this embodiment, since the white sheet data is obtained by extracting an image of 64 pixels in the central portion of the picture, any color image except white such as a white sheet can be picked up around the 64-pixel area.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com