Introduction to statistical pattern recognition (2nd ed.)
Introduction to statistical pattern recognition (2nd ed.)
Quantization effects on digital watermarks
Signal Processing
Improving the detection reliability of correlation-based watermarking techniques
ICME '03 Proceedings of the 2003 International Conference on Multimedia and Expo - Volume 2
Optimum decoding and detection of multiplicative watermarks
IEEE Transactions on Signal Processing
Information-theoretic analysis of information hiding
IEEE Transactions on Information Theory
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A set of coefficient selection rules is proposed for efficiently determining the effective DCT watermarking coefficients of an image for JPEG attack. These rules are simple in computation but they are derived from the theoretically optimized data set with the aid of the parametric classifiers. They improve the watermark robustness (correctly decoding) and, in the mean time, decrease the error detection probability (correct detection). The frequency versus watermark strength space is used in constructing the selection rules. Simulation results show that the computational complexity is significantly reduced compared to our previous theory-based optimization work, but still the selected coefficients can achieve nearly the same performance as the original scheme.