Review of Various Image Steganography Techniques and Different Type For Data Hiding Scheme

steganography has been the focus of a sharing large amount of research in recent years. Therefore there are various steganography techniques which are used under its various types. Steganography is used for secret transmission of data. Steganography brings out the opposite approach and tries to hide all evidence during communication. This survey summarize steganography, its types (Text Steganography, Image Steganography, Audio Steganography, Video Steganography, Protocol Steganography), different existing digital image steganography techniques of data hiding in spatial and transform domains. Steganography benefits, drawbacks and application are also discussed.