Adaptive Multi-bit Image Steganography Using Pixel-Pair Differential Approach

With the increase of communication over Internet, the issue of security has become an important factor. Steganography is a consequence of the increasing degradation of reliability. The roots of steganography lie in ancient Greek civilization. With time, steganography has moved a long way in the path of advancement. It started off with least significant bit (LSB) embedding which mainly focussed on data security. With time, many algorithms have been designed using multi-bit steganography which takes into account both security and capacity of data embedded. In this paper, a new technique has been introduced where various parameters determine the number of bits embedded. This helps to improve the robustness of this method. We show empirically that our method withstands the statistical attacks and benchmark.