Image watermarking algorithm in dual transform domains based on SVD
Long Yuan-yuan · Computer Engineering and Applications Journal · 2010
A digital image watermarking algorithm in dual transform domains of combination of Discrete Wavelet Transform (DWT) and Discrete Cosine Transform(DCT) based on Singular Value Decomposition(SVD) is proposed.The simulation results indicate that the algorithm has both good quality for watermarked image and excellent robustness against common attacks and geometric distortion,it uses a gray image as a watermark,increasing embedded information capacity,so it has some practical value for copyright protection.