Secure Transmission For Digital Watermarking using 4-level Stationary Wavelet Transform with SVD

This paper presents secure transmission for digital watermarking using four level stationary or redundant wavelet transform (SWT/RWT) and singular value decomposition (SVD). In the embedding process. For copyright protection and image quality, we used 4-SWT-SVD for digital watermarking. In our method, SWT is applied to decompose the cover image and produce the low and high frequency coefficients to take benefits of �power compaction� goods. SVD is additionally performed to acquire the singular values and improve the strength of the algorithm. The experimental outcomes give good results up-to 49% as compared to previous results. Several results show that the presented method is able to withstand under various attacks. In this study, we determined the performance of this algorithm on the basis of Peak Signal Noise Ratio (PSNR) and Normalized Correlation (NC) value of various watermarked images.