A Digital Watermarking Algorithm Based on the Fourier-Domain for Meaningful Images
Jing Dong-xing · Computer Engineering and Science · 2009
In order to improve the discrimination and robustness of digital watermarks,the paper proposes a digital watermarking algorithm based on the Fourier domain for meaningful images. The algorithm uses the Arnold transform method,correlation detection method and the Fourier-domain characteristics,and embeds two unrelated pseudo-random sequences to effectively raise the discrimination. The watermark is embedded in the most important component to obtain better robustness. The simulation shows the feasibility of the algorithm.