Enhancement of steganography scheme based on QC-LDPC codes

Steganography is a technique of concealing information which has gained more popularity in digital world. It can be used in different formats although image steganography is commonly required because of its immense presence over internet [1]. Many coding techniques have been deployed to minimize the statistical impact of embedding bits behind the cover. In this paper, we propose a flexible scheme that uses QC-LDPC (Quasi-cyclic low density parity check) codes in image steganography which considerably reduces the software and hardware implementation complexity and provides better performance.