About: http://webisa.webdatacommons.org/48700163

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	Japanese patent application laid open Hei-10-108208 for example discloses a technique in which contour signals (edge components) are extracted from G signals to perform edge enhancement.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com