Vision Research Lab - Zero Divergence Secure Steganography

Steganography is the art and science of communicating in such a way that the very existence of communication is not revealed to a third party. In order to communicate without being detected, the data-hider must obey following two conditions.

1.Perceptual constraint. The perceptual distortion between the original and stego image should not be more than a certain maximum amount, D1 , for some perceptual distance measure.

2.Statistical constraint. The embedding process should not modify the statistics of the host signal more than a very small number, epsilon, for some statistical distance measure.

The objective in this project is to investigate steganographic schemes that can provide provable security by achieving zero Kullback-Leibler divergence between the cover and the stego signal distributions, while communicating at high rates.