Image security using watermarking based on DWT-SVD and Fuzzy Logic

In present world, digital watermarking for image security is broadly used. Among existing, image watermarking techniques DWT have wide range of functionality. Here this paper explains concept of developing new image watermarking. It uses the Discrete Wavelet Transform and then develops a DWT-SVD approach. Even DWT have wide range of functionality but when SVD is combined with it will enhance the robustness of extracted image. Here proposed algorithm for embedding and extraction will be tested on the MATLAB R2014a. Then some analyses are done using fuzzy logic. Finally various parameters are calculated using both DWT and DWT-SVD such as PSNR, SNR and SSIM w.r.t. the salt & pepper noise and Poisson noise.