<http://webisa.webdatacommons.org/24543796>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/244038403>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/24543796> .
<http://webisa.webdatacommons.org/24543796>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/24543796>	<http://www.w3.org/ns/prov#value>	"For example, a histogram conversion method is a technology for correcting an image gradation, and is also useful for improving a contrast of an image projected by a projector." .