Steganography Based on Low Density Parity Check(LDPC)

摘要

We propose a data hiding scheme based on Low Density Parity Check(LDPC) codes. Our proposed theoretical point of view, the blind watermarking can be transmitted through a noisy channel. Matrix encoding proposed by Crandall can be used in steganographic data hiding methods. Our proposed "LDPC-DH (Data Hiding)" scheme has a slightly increasing embedding efficiency, and improves highly embedding rate. We therefore propose verifying the embedding rate during the embedding and extracting phase. Experimental results show that the reconstructed secret messages are the same as the original secret messages, and that the proposed scheme exhibits a good embedding rate compared to that of previous schemes.