1. Castleman, K.: Digital Image Processing. Prentice-Hall, Upper Saddle (1996)
2. Chan, C.K., Cheng, L.: Hiding data in images by simple LSB substitution. Pattern Recognition 37, 469–474 (2004)
3. Chen, B., Wornell, G.: Quantization index modulation: a class of provably good methods for digital watermarking and information embedding. IEEE Trans. Information Theory 47(4), 1423–1443 (2001)
4. Curran, K., Bailey, K.: An evaluation of image based steganography methods. International Journal of Digital Evidence 2(2), 1–40 (2003)
5. Forssen, P.-E., Granlund, G., Wikiund, J.: Channel representation of colour images (Tech. Rep. LiTH-ISYR-2418), Computer Vision Laboratory, Department of Electrical Engineering, Linkoping University, SE-581 83 Linkoping, Sweden (2002)