Spread transform capacities for image media using complex wavelets

As the area of data hiding has matured information theoretic methods of calculating the capacity of data hiding schemes have arisen. This paper uses a dual tree wavelet transform and non redundant complex wavelet transform along with a spread transform data hiding algorithm to obtain improved levels of data hiding capacity. The information theoretic model used involves the use of game theory applied to optimize the embedding and attack strategy across parallel Gaussian channels. Capacity results are compared with those recently published by Ghouti et al.