IMAGE EMBEDDING USING SAME SIZE VISUAL CRYPTOGRAPHY

Abstract

The visual cryptography is a process of splitting image in multiple shares or transparencies so that no one can identify the image from few shares. The image can be recovered only when the receiver has all the shares. When all the shares are stacked together the image is regenerated and can be identified by human eye. The visual cryptographic process can be used in applications where images are involved such as hiding other image information in the original image. Image embedding is the process of putting hidden image information in the original image. Image embedding using same size VC uses image size invariant VC [2] for generating multiple shares of images and the multiple shares contain the information of the hidden image. The hidden image information is embedded at every second pixel or forth pixel depending upon the assumption that two or four consecutive pixel contains the same value. Image embedding by assuming two consecutive pixels have same value contains the hidden imag...