Now a days, there are many possible ways to transmitting the data. Any communication of internet and networks application requires security. During the transmission confidential data can be hacked in different ways. So privacy and security are very important issues at the time of transmission over the internet. Steganography is the art of hiding information in other information. It is going to gain its importance due to the exponential growth and confidential communication of potential computer users over the internet. In image Steganography, secret communication is achieved to embed a message into cover image and generate a stego- image. There are different type data hidings techniques are used for secure data transmission. In this paper describes the different data hiding techniques for secure data transmission.

Secure image transmission, Data hiding, Steganography

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