Adaptive Edge Steganography for Images

Steganography refers to the technique of hiding secret messages into media such as text, audio, image and video without any suspicion, while steganalysis is the art and science of detection of the presence of steganography. Steganography can be used for the benefit of the mankind to serve us as well as by terrorists and criminals for malicious purposes. Both steganography and steganalysis have received a lot of attention from law enforcement and media. Newer and more sophisticated steganographic techniques for embedding secret message will require more powerful steganalysis methods for detection. In this paper, an adaptive steganographic technique, which embeds secret message bits in the edges of the image is proposed. The proposed technique has ability to release more edge regions by decreasing pre-defined threshold and some powerful steganalytic techniques fail to detect the hidden message.