Analysis of data hiding in R, G and B channels of color image using various number of LSBs

In today's world of fast communication, to insure, the security and integrity of information is a big challenge. Data hiding also known as Steganography is one of the fields that deal in methods related information security and hide secret information and message other information. This paper elucidates the effect of data hiding in different number of least significant bits in the primary colors of RGB color image. These individual color channels are analyzed at different hiding capacity level and its has been observed that high quality Stego images with PNSR 30dB and above can been obtained by hiding secret information in 5 least significant bits of red, green and blue channels, specially the green and blue channels give a very high visual quality. The individual channels can hide 20% data, i.e. one fifth of the overall size of cover image, with undetectable changes in cover image.