Comparative Study of Various Techniques Employ in Image Steganography
Preeti Singh1, Charu Pujara2
1Preeti Singh, Computer Science Department, Manav Rachna International University Faridabad.
2Charu Pujara Computer Science Department, Manav Rachna International University Faridabad.
Manuscript received on may 27, 2012. | Revised Manuscript received on June 22, 2012. | Manuscript published on June 30, 2012. | PP: 22-26 | Volume-1 Issue-5, June 2012 | Retrieval Number:  E0384051512/2012©BEIESP

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Abstract: The staggering growth in communication technology and the usage of internet allows the huge transfer of data over it but because of various security threats data can be tampered by the intruders. Various cryptography techniques are developed for secure transmission over the internet, another practical approach of hiding secret information from intruders over the web is Steganography. Steganography is a technique of hiding covert data inside an image. Various techniques are discussed below for hiding data and each of them have some of their own limitations. This paper comprises of four sections. Section 1 gives a brief introduction about Steganography. Section 2 Steganograpy Techniques, Section 3 Analysis of Steganography Techniques, Section 4 Conclusion and future scope. 
Keywords: Steganography, Techniques, technology usage of internet.