DFT based multiple watermarks for medical image robust to common and geometrical attacks
Jingbing Li, Chunhua Dong, Xian‐Hua Han, Yen‐Wei Chen · International Conference on New Trends in Information Science, Service Science and Data Mining · 2012
This paper presents a method for robust watermarking of medical image using DFT. A feature vector of the medical image is utilized to enhance the robustness against rotation, scaling, and translation. The proposed algorithm utilizes the medical image's feature, Hash function, the third party authentication. We describe how to obtain the feature vector of medical image and embed and extract the watermarking. Simulation results demonstrate the proposed algorithm's robustness against common and geometrical attacks.