Image Description Notes with LSB Encoding in Steganography Technique

Steganography is a most powerful technique in which hide the information into existence information. The main objective of steganography is provide more security from an unauthorized access. It essence is to embed secret message within seemingly innocent carrier in such way that unauthorized parties are not aware of communication. Some of the techniques used in steganography are domain tools or simple system such as least significant bit (LSB) insertion and noise manipulation, and transform domain that involve manipulation algorithms and image transformation such as discrete cosine transformation and wavelet transforms. In this paper, there is technique in which Least Significant Bit is modified to hide the secret message or any information from third party. LSB encryption is used for hiding information in multimedia document. In this method each character of secret/embedding message including extra special character is turn into in ASCII code then each value is turned in 8 bit binary number. Each bit of each character is inserted in last LSB (Least significant bit) of each pixel of cover image. Only last bits of cover image will be altered soon, this method having an ability of yield a secret-embedded image that is totally equivalent from the original image by the human eyes.