General quality maintenance module for motion picture watermarking

Authors:
I. Echizen;H. Yoshiura;T. Arai;H. Kimura;T. Takeuchi
Affiliations:
Syst. Dev. Lab., Hitachi Ltd., Tokyo, Japan;-;-;-;-
Venue:
IEEE Transactions on Consumer Electronics
Year:
1999

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Abstract

Because the picture quality of watermarked motion pictures must not be degraded by the watermarking, this paper describes a new module that controls watermarking processes. The module uses a new human sight model to optimize watermark strength for each frame of a motion picture, and it prevents flickering by limiting the frame-to-frame change in watermark strength. Another advantage of this module is that it can he used in a wide range of watermarking systems. The effectiveness of the proposed module has been demonstrated in five watermarking systems.