About: http://webisa.webdatacommons.org/16977541

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	An optimized contrast function Fc can be ##EQU1## where A', D and B are the intensities apparent from the figure, while k is a constant.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com