Watermark resynchronization

dc.contributor.author	Ραφτόπουλος, Κ.	el
dc.contributor.author	Τζουβέλη, Π.	el
dc.contributor.author	Νταλιάνης, Κλήμης	el
dc.contributor.author	Τσαπατσούλης, Ν.	el
dc.contributor.author	Parker - Wood, A.	en
dc.date.accessioned	2015-06-05T14:13:54Z
dc.date.available	2015-06-05T14:13:54Z
dc.date.issued	2015-06-05
dc.identifier.uri	http://hdl.handle.net/11400/15132
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.springer.com	en
dc.subject	Υδατογράφηση
dc.title	Watermark resynchronization	en
heal.type	journalArticle
heal.secondaryTitle	an efficient approach based on Eulerian tours around a robust skeleton	en
heal.classification	Organization and administration
heal.classification	Advertising
heal.classification	Διοίκηση και οργάνωση
heal.classification	Διαφήμηση
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85131581
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85001137
heal.classificationURI	N/A-Διοίκηση και οργάνωση
heal.classificationURI	N/A-Διαφήμηση
heal.contributorName	Ferecatu, M.	en
heal.identifier.secondary	DOI: 10.1007/978-3-642-40779-6_21
heal.language	en
heal.access	campus
heal.publicationDate	2013
heal.bibliographicCitation	Raftopoulos, K., Ntalianis, K., Tzouveli, P., Tsapatsoulis, N., Parker-Wood, A. et al. (2013) Watermark resynchronization: An efficient approach based on Eulerian tours around a robust skeleton. "Lecture Notes in Computer Science", 8099, p.211-214	en
heal.abstract	The existing block-based approaches, albeit successful in resisting frequency domain attacks, are sensitive to geometric distortions due to the lack of reference in repositioning the block grid. In this paper an RST-invariant block-based approach is proposed, aiming at protecting image objects. The term “image object” refers to semantically contiguous parts of images that have a specific contour boundary. The proposed approach is based on shape information, since the watermark is embedded in image blocks, the location and orientation of which are defined by Eulerian tours that are appropriately arranged in layers, around an object’s robust skeleton. Images from the Polymathic project are used to illustrate the technique.	en
heal.publisher	Springer	en
heal.journalName	Lecture Notes in Computer Science	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true