Reversible watermarking with embedded digital signature

With the advancement of technology on the internet, image authentication has drawn a good attention in both storage as well as communication. In this paper, we present a technique for watermarking of digital images based on the singular value decomposition a reversible watermarking technique with an additional embedded Digital Signature. Initially, the original image is watermarked using a pattern matrix, then a unique digital signature is created with the above watermarked pixel value and Accession Number and hence, embedded in the original image. Decryption is done in reverse order.