SURVEY ON DIFFERENT METHODS OF IMAGE STEGANOGRAPHY

Electronics and Communication Engineering

NATIONAL CONFERENCE on VLSI, COMMUNICATION AND SIGNAL PROCESSING (NCVCS-2017)

Today major part of communication goes through internet and this communication needs to be secret and protected against malicious attack, therefore security problems become an essential issue. Image steganography is also defined as the study of invisible communication that usually deals with the ways of hiding the existence of the communicated message. The Objective of steganography are Un detectability, robustness and capacity of the concealed data, these key factors that separate it from related techniques like cryptography and watermarking. A survey of image steganography is done here and the different techniques to hide a secrete data behind a cover image are described. It is very useful technique in information security domain. In this study we analyse how image steganography is done, where it is used and the advantages and disadvantages of each technique.

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