About: http://webisa.webdatacommons.org/270284096

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	??(x,y)=c{F(x,y)???F min}/(F max ???F min)+??b where c satisfies 0.5???c???1, ??b satisfies 0?????b???1.5, and Fmin is a minimum value of the relative brightness F(x,y); or
http://www.w3.org/ns/prov#wasQuotedFrom	google.com