International Journal of Advanced Research in Computer Engineering & Technology
Visual Cryptography is a cryptographic technique which can hide the visual data (images, pictures, text etc.) and which can be decrypted without a computer but in a tedious way. The best-known techniques that visual cryptography has are encrypting the images by breaking those images into n shares. Each n-1 share will not reveal the actual image but decrypting the n shares will give the actual information of the image. The authors can also make the image zoom and find out the information in it but they can hide this information through these techniques of visual cryptography. Even watermarking is one of the beautiful techniques which protect the copyright ownership of a digital image.