Web Based BPCS Steganography

The technique to hide secret information in some other data (carrier) without any apparent evidence of data exchange is called as Steganography. Previously steganographic techniques have limited information-hiding capacity.50–60% Data can be hidden after implementation of this paper . This technique is called Bit Plane Complexity Segmentation (BPCS) Steganography. In the traditional steganograhy techniques principle was either to replace a special part of the frequency components of the carrier image, or to replace all the least significant bits of a multi-valued image with the secret information. Our new steganography uses an image as the carrier data, and we embed secret information in the bit-planes of the carrier. This technique makes use of the characteristics of the human vision system whereby a human cannot perceive any shape information in a very complicated binary pattern. We can replace all of the ―noise-like‖ regions in the bit-planes of the carrier image with secret data without deteriorating the image quality. A typical carrier is a color image having Red, Green, and Blue color components in a multi-bit data structure.