Sphere-packings, lattices, and groups
Sphere-packings, lattices, and groups
A Stochastic Approach to Content Adaptive Digital Image Watermarking
IH '99 Proceedings of the Third International Workshop on Information Hiding
A Robust Data Hiding Technique Using Multidimensional Lattices
ADL '98 Proceedings of the Advances in Digital Libraries Conference
IEEE Transactions on Signal Processing
IEEE Transactions on Information Theory
IEEE Transactions on Image Processing
Hi-index | 0.00 |
A considerable amount of attention has been lately paid to a number of data hiding methods based on quantization, seeking to achieve in practice the results predicted by Costa for a channel with side information at the encoder. In this paper we analyze a multidimensional extension of the implementation of Costa's result known as DC-QIM. The presented analysis is based on measuring the probabilities of decoding error in the presence of two important kinds of additive channel distortions. DC-QIM is able to achieve a probability of decoding error of less than 1e-02 for 0 dB of watermark to noise ratio and only 20 samples per hidden bit. Empirical results supporting our analysis are given both for synthetic data and real images.