Image Watermarking In DCT, DWT and Their Hybridization Using SVD: A Survey

Digital watermarking is one of the vital solution for protecting the intellectual property rights, copy control and content verification. It involves lot of human efforts, cost and time for their protection. Digital watermarking by hybridizing the various transforms along with singular value decomposition (SVD) has gained substantial attention due to development of efficient techniques which increases the performance. In this paper, an exhaustive survey has been done on digital image watermarking based on Discrete Cosine Transform (DCT) and Discrete Wavelet Transform (DWT) hybridization with SVD. Although there are standard algorithms for watermarking which proves their robustness but still a lot of things like principal component analysis, redundant and feature extraction based hybridization of transform in place of SVD need to be explored in order to enhance the performance.