In this paper, we investigate the use of a family of transform domains in embedding hidden data.A new date
hiding scheme that is based a pair of unmatched orthogonal transforms has been developed. The hidden message
signal is transmitted via the residual channel of two different parameterized slant transforms. The properties of
residual channel of parameterized slant transforms are characterized and performance of proposed scheme have
been analyzed and simulated. We also discuss on the performance of the scheme and basis selection.
In this paper, we introduce a novel signal-dependent parameterization of Slant-Hadamard transform. A secure
watermarking scheme in transform domain is proposed based on this new orthonormal transform. Then watermarking
performance is analyzed and discussed if we model the watermarking scheme as spread spectrum
communication problem. We also propose an optimal parameters selection algorithm and show the robustness
performance of the method through simulations that compare with watermarking approaches in other orthogonal
domains in the presence of lossy compression.