Robust Watermarking Using Dwt-Svd & Torus Automorphism (DSTA) Based With High PSNR

Proposed work is another arrangement of picture watermarking which join pre-preparing of cover picture with DWT and SVD, Proposed work using an alphanumeric key which at first alters watermark using fundamental 'XOR' operation, and at beneficiary end this key must be there so recipient may remove watermark. Proposed work is moreover using torus Automorphism which at first change watermark into a scramble plan which can't be affirmation as remarkable watermark. Case picture from database has been picked as cover picture and host picture. Viability of figuring took a gander at by using parameter, for example, PSNR, BER and MSE. It has been found that PSNR upgrade by 10.64%. This exhibits capability of computation. The work is been design and attempted on MATLAB 2013 test framework