A Visual Cryptographic Scheme To Secure Image Shares Using Digital Watermarking

Abstract-Visual Cryptographic Scheme is a special technique used to send the data securely over the network. It is a technique which allows visual information (pictures etc.) to be encrypted in such a way that the decryption can be performed by the human, without using any decryption algorithm or without doing any computation. In this paper we have introduced the new technique known as the “Digital Watermarking ” technique in order to secure or ensure the owner authentication. Digital Watermarking is almost same as that of the Steganography but as steganography more focused about hiding the information over a cover object so that it cannot be perceived by the user but in watermarking the hidden information is usually related to the cover image. In this we have introduced the new technique, digital watermarking as the simple visual cryptography is not so secure for sharing of data and it also does not ensure the owner authentication. This cryptographic technique involves dividing the secret image into n shares and a certain number of shares (m) are sent over the network. A distinctive property of VCS is that one can visually decode the secret image by superimposing shares without computation. The project presents an approach for embedding visual cryptographically generated image shares in the host images to provide authentication for the VC shares and makes these secret shares invisible by embedding them into host images. The share is embedded into the host image i