Watermarking

H - Electricity – 04 – N

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04N 1/32 (2006.01) H04N 5/913 (2006.01) H04N 7/32 (2006.01)

Patent

CA 2368136

A watermarking system and method is proposed for still or moving pictures in which a watermark is embedded robustly and simply into DC-values, but without causing unacceptable visible picture degradation. The watermark is secure and can be readily detected, and the method can be used to convey additional data. Also disclosed is a method for watermarking a sequence of pictures in which the visibility of artifacts is reduced. The watermark may carry data and may be used to label a programme.

Cette invention concerne un système et un procédé de réalisation de filigranes pour images fixes ou mobiles selon lesquels un filigrane est noyé de manière robuste et simple dans des valeurs DC (valeur moyenne d'échantillonnage), mais sans dégradation inacceptable de l'image visible. Le filigrane est à l'abri et facilement détecté, ce procédé convenant pour la transmission d'autres informations. Le procédé permet également d'inscrire en filigrane une séquence d'images avec une visibilité réduite des artefacts. Le filigrane peut porter des données et être utilisé pour désigner un programme.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Watermarking does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Watermarking, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Watermarking will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1859678

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.