Abstract:

Abstract: We present a new scheme termed wet paper code adaptive steganography(WPCAS). Using the wet paper code, the receiver can recover the secrete message correctly without knowing the elements used to carry secrete bits. This gives the sender complete freedom to choose the collection of elements as message carrier.
With this advantage, the new scheme builds a proper adaptive rule (AR) which can automatically adjust its parameters to make the collection of message carrying elements better match the noise-like region of bit-plane so that visual imperceptibility is enhanced. The fact that the AR is unknown to anyone except the sender
prevents analyzers from launching AR-based attacks, making the new scheme more security. Comparison between the WPCAS scheme and the adaptive BPCS steganography show that the proposed WPCAS is better in terms of visual imperceptibility and resistance against steganalysis based on statistics of complexity.

Key words: adaptive steganography, adaptive rule, wet paper code, visual imperceptibility