Improved Video Watermarking using Nested Watermark, Wavelets and Geometric Warping
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Date
2011
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Abstract
The advancements in communication software and hardware is
increasing the amount of information in the form of text, image, audio and video
being shared. This increase arise the issue of protecting the intellectual property.
This paper studies the protection of video signals through watermarking. The
system proposed uses a combination of visual cryptography and wavelets to create
a nested watermark which is embedded into the raw uncompressed video signal
using a geometric warping technology. To improve robustness against
compression, the method embeds the watermark in relevant area using a block
selection method. The experimental results prove that the proposed system is
efficient in terms of capacity and robustness against various attacks.