Medical volume data watermarking using scrambling 

Nowadays, the issue of information security plays a significant role in the information age, hence to protect the medical volume data is more and more important, a watermarking algorithm based on Arnold scrambling and 3D-DWT for medical volume data is presented in this paper. In order to strengthen the power of protecting watermarking information, we preprocess the original watermarking based on Arnold scrambling transform.

Moreover, the algorithm combines the wavelet theory, the visual feature vector, encryption technology and the concept of third party. There is no complicated process in finding the Region of Interest (ROI) of medical images. Therefore, compared with the existing medicalwatermarking techniques, it can embed much more watermarkinginformation and less complexity. The result of our experiment shows that the encrypted watermarking algorithm has strong robustness and security.