An improvement of steganography scheme based on complete complementary codes

Information hiding scheme using direct sequence spread spectrum (DS-SS) technique is one of the effective ways to embed secret information into media contents securely. In recent years, information hiding schemes based on complete complementary codes have been proposed. In particular, it has been shown that it is possible to embed a large message into an image by a blind steganography scheme based on complete complementary codes. However, it has been pointed out that bit errors occur since the source image is not referred to by the blind scheme. In this paper, we apply low-density parity-check (LDPC) codes to the steganography scheme and analyze the bit error rate (BER) performance by numerical experiments.