<http://webisa.webdatacommons.org/26668870> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/267716951> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/26668870> . <http://webisa.webdatacommons.org/26668870> <http://www.w3.org/ns/prov#value> "igital information embedding/extracting apparatus and method, and medium including a program for executing the method recorded thereonUS20020016916Sep 29, 1997Feb 7, 2002Hewlett-Packard CompanyWatermarking of digital objectUS20020021808May 31, 2001Feb 21, 2002Keiichi IwamuraImage processing apparatus, image processing method and storage mediumUS20020051559Sep 7, 2001May 2, 2002Hideki NodaApplicati" . <http://webisa.webdatacommons.org/26668870> <http://www.w3.org/ns/prov#wasQuotedFrom> <google.com> . <http://webisa.webdatacommons.org/prov/266379526> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/26668870> .