A Study and Review of Techniques of Spatial Steganography

Steganography is the technique of hiding secret information within any media like text, images, audio/video and protocol based network. This paper studies and reviews various data hiding techniques based on spatial domain image steganography like Least Significant Bit, Most Significant Bit, Parity check, Pixel value differencing. It elaborates an overview of steganography and illustrates the process of steganography. Various classifications of steganographic techniques are discussed. The image domain/ spatial domain techniques are discussed in detail. As privacy concerns continue to develop along with the digital communication domain, steganography will undoubtedly play a growing role in society. For this reason, it is important that we are aware of digital steganography technology and its implications. Equally important are the ethical concerns of using steganography and steganalysis. Steganography enhances rather than replaces encryption.