ABSTRACT
The objective of this paper presentation to explain how to embed the spatial spread-spectrum watermark directly to compressed MPEG-4 bit streams by modifying DWT coefficients. The proposed watermarking procedure is based on the three-dimensional discrete wavelet transform (3D DWT) and the spread spectrum sequence. First the watermark image has been preprocessed using the mixing and the pseudorandom permutation. After dividing a video sequence into video shots, perform the 3D DWT. And then, the watermark is proposed to embed into the 3D DWT coefficients considering the
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