DefinePK

Abstract

Steganography is the hidden communication, concealing the existence of secret information. Steganography hides the secret messages with high security by obscurity. This technique is mainly used in image processing to maintain its confidentiality, provides authentication and improves the medical image security. This paper provides a state-of-the-art review of the steganographic techniques such as Spatial and Transform domain embedding schemes, the different algorithm utilized to implement the embedding and extracting process in steganographic system. Implementation of steganography yields high Imperceptibility, Robustness, embedding capacity, security with PSNR.