About: http://webisa.webdatacommons.org/205770528

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	Referring to FIG. 7, there is a graph illustrating the second gamma constant according to a ratio Y/Yavg of a luminance value and an average luminance value with respect to each of pixels.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com