Abstract

Steganography is hiding the secret data into a cover object to protect it from unauthorized access. It is a technique of invisible communication which hides the existence of the message. If the cover object used is an image, the steganography is known as image steganography. It has many applications like Online transactions, military communication etc. In this paper we are discussing Existing important image steganography techniques like Least Significant Bit (LSB), Pixel Value Differencing (PVD), and Modified Kekre Algorithm (MKA) etc.

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