International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Steganography is the art of hiding the fact that communication is taking place. Steganographic systems can hide messages inside images or other digital objects. To a casual observer inspecting these images, the messages are invisible. In this paper the authors have first explained concept, and also the history of steganography. After that they have mentioned its basis; and as the main part of the paper, they have cited and explained different methods of steganography. They have also tried to mention advantages and disadvantages of them, and also the way each algorithm works.