Video Watermarking Based on DPCM and Transformcoding Using Permutation Spectrum and QIM

  • Jakob Wassermann
  • Peter Wais
Part of the Communications in Computer and Information Science book series (CCIS, volume 287)


Robust Video watermarking techniques based on DPCM Encoder and permutated DCT spectrum combined with QIM is introduced. For this purpose the pixels of incoming frames undergo permutation, followed by block wise DCT transform. The DPCM encoder generates differential spectral images. The significant coefficients of these differential spectral images are selected for embedding procedure by quantization index modulation (QIM) method. By this technique the watermark is more robust against attacks and compression. To further increase robustness and to avoid visible degradation additionally the frame order and the watermark pixels were rearranged. To extract the watermark from the video the same operations have to be done on the decoder side. The incoming video frames are permutated followed by block wise DCT transform. After the decoder builds the differential spectral image the embedded coefficients can be selected and watermark extracted by inverse QIM.


Videowatermarking DPCM Transformcoding DCT QIM 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Jakob Wassermann
    • 1
  • Peter Wais
    • 1
  1. 1.Dep. of Electronic EngineeringUniversity of Applied Sciences Technikum WienWienAustria

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