A Comprehensive Study on Securing Visual Cryptographical Image Shares Using Digital Watermarking (original) (raw)
This paper shows the study of various digital watermarking techniques and also the merits of combining the visual cryptography with digital watermarking techniques. The Visual cryptography scheme (VCS) is an encryption method that encrypts a secret image by breaking it into shares. Unlike traditional cryptographic schemes, decryption of secret image in VCS could be done visually by just superimposing the shares without any complex algorithm. Watermarking can be described as a method of embedding information (audio, video or image) into another signal so that the information cannot be removed easily. The embedded information can either be in hidden or visible form. In case of digital images,. This technique can be used to provide more security to visual cryptographic (VC) image shares by embedding image shares into the host image.
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