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Title of Journal: Quantum Inf Process

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Abbravation: Quantum Information Processing

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Springer US

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DOI

10.1002/jlac.19636630115

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1573-1332

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Analysis and improvement of the watermark strategy

Authors: YuGuang Yang Xin Jia Peng Xu Ju Tian
Publish Date: 2013/03/16
Volume: 12, Issue: 8, Pages: 2765-2769
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Abstract

We investigate the quantum watermark strategy for quantum images based on quantum Fourier transform proposed by Zhang et alQuantum Inf Process 122793–803 2013 It is aimed to embed the watermark image into the Fourier coefficients of the quantum carrier image without affecting the carrier image’s visual effect However in our opinion the protocol is not clearly described and several steps are ambiguous Moreover we argue that the watermarking algorithm claimed by the authors is incorrect At last a possible improvement strategy is presentedThis work is supported by the National Natural Science Foundation of China Grant Nos 61170270 61003290 The Specialized Research Fund for the Doctoral Program of Higher Education Grant Nos 20091103120014 20090005110010 Beijing Natural Science Foundation Grant Nos 4122008 1102004 Funding Project for Academic Human Resources Development in Institutions of Higher Learning Under the Jurisdiction of Beijing Municipality No CITTCD201304039

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  2. Super quantum discord for general two qubit X states
  3. Non-Markovian entanglement dynamics of two qubits interacting with a common electromagnetic field
  4. An ancilla-based quantum simulation framework for non-unitary matrices
  5. A new sure-success generalization of Grover iteration and its application to weight decision problem of Boolean functions
  6. Quantum Fisher information for moving three-level atom
  7. A quantum model for autonomous learning automata
  8. Monogamy of correlations versus monogamy of entanglement
  9. Quantum discord for the general two-qubit case
  10. A quantization procedure based on completely positive maps and Markov operators
  11. On conclusive eavesdropping and measures of mutual information in quantum key distribution
  12. The CGMV method for quantum walks
  13. Concurrence in the framework of coherent states
  14. Noncyclic geometric quantum computation and preservation of entanglement for a two-qubit Ising model
  15. Noise and the magic square game
  16. Geometry and dynamics of one-norm geometric quantum discord
  17. Nuclear polarization and entanglement in spin systems
  18. Controllability and Universal Three-qubit Quantum Computation with Trapped Electron States
  19. Quantum relative phase, m -tangle, and multi-local Lorentz-group invariant
  20. Perfect state transfer by means of discrete-time quantum walk on complete bipartite graphs
  21. Dynamics of one-dimensional tight-binding models with arbitrary time-dependent external homogeneous fields
  22. Classical–quantum arbitrarily varying wiretap channel: Ahlswede dichotomy, positivity, resources, super-activation
  23. Multi-party quatum private compariso protocol with $$$$-level etagled states
  24. Lower bound of quantum uncertainty from extractable classical information
  25. Quantum image encryption based on restricted geometric and color transformations
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