Analysis of the “Wavelet Tree Quantization” watermarking strategy and a modified robust scheme

@article{Das2006AnalysisOT,
  title={Analysis of the “Wavelet Tree Quantization” watermarking strategy and a modified robust scheme},
  author={Tanmoy Kanti Das and Subhamoy Maitra},
  journal={Multimedia Systems},
  year={2006},
  volume={12},
  pages={151-163}
}
Here we study a recently proposed watermarking scheme based on the paper “Wavelet Tree Quantization” (WTQ) by Wang and Lin (IEEE Trans Image Process 13(2):154–165, 2004). In given scheme, wavelet coefficients corresponding to the same spatial locations are grouped together. Two such groups, selected at random, constitute a supertree. Some of these supertrees are quantized to embed the watermark information in the image. In the process of cryptanalysis we first identify the groups which are… CONTINUE READING