Abstract
Robust Video watermarking for M-JPEG data stream based on DCT-Transform and DPCM Encoder is introduced. For this purpose the DPCM encoder is modified and feeds with DCT spectral coefficients of the incoming frames. The difference of the spectra of two sequential frames are used for the embedding the watermarks. To enhance the embedding performance and the security of watermarks some rearrangement of the pixels of the video frames and of the watermarks are introduced. The first permutation was applied to generate a random distribution of the pixels inside a block. The second was applied on the watermark and the third is responsible for the rearrangement of the frame order inside the GOP. The permutation inside the frame and the frame order increases the encryption ability and reduces visible degradation due to watermarking embedding procedure. To realize robust transmission the modified spectral coefficients are encoded into an M-JPEG data stream.
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© 2011 Springer-Verlag Berlin Heidelberg
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Wassermann, J. (2011). M-JPEG Robust Video Watermarking Based on DPCM and Transform Coding. In: Dziech, A., Czyżewski, A. (eds) Multimedia Communications, Services and Security. MCSS 2011. Communications in Computer and Information Science, vol 149. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-21512-4_15
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DOI: https://doi.org/10.1007/978-3-642-21512-4_15
Publisher Name: Springer, Berlin, Heidelberg
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