ANALYSIS AND IMPLEMENTATION OF LEAST SIGNIFICANT BASED STEGANOGRAPHY USING DIFFERENT TRANSFORM

As the escalation of internet is one of the major traits of information technology, data hiding techniques has taken a significant role for the transmission of multimedia content. One of the essential properties of digital information is that it's in theory very simple to make and share out unlimited number of its duplicates. The fact that a vast number of perfect copies of text, image, audio and video records are often illegally created and distributed requires studying ways of embedding copyright information and serial numbers in image, audio and video data. Steganography brings a spread of very substantial technique the way to conceal key information in an imperceptible and/or irremovable way in data like image, audio and video. The simulation results of our work indicates that this method achieves well especially when embedding secret data at higher LSB bit positions. There are few procedures that try to improve the quality of stego image by embedding secret data only in the channels of least importance. Peak Signal to Noise Ratio (PSNR) and Mean Square Error (MSE) is used as a performance index to show the quality of steganographic image.