1. Steganalysis: the investigation of hidden information;Johnson,1998
2. Active steganalysis of spread spectrum image steganography;Chandramouli,2003
3. Detecting LSB steganography in color and gray-scale images;Fridrich;IEEE Multimed,2001
4. On estimation of secret message length in LSB steganography in spatial domain;Fridrich,2004
5. Rich models for steganalysis of digital images;Fridrich;IEEE Trans. Inf. Forensics Secur.,2012