A robust watermarking algorithm for encrypted 3D medical images based on 3D-DCT

被引：0

作者：

Xu L. ^{[1
]}

Li J.-B. ^{[1
]}

机构：

[1] College of Information Science and Technology, Hainan University, Haikou, 570228, Hainan

来源：

International Journal of Simulation: Systems, Science and Technology | 2016年 / 17卷 / 43期

基金：

中国国家自然科学基金;

关键词：

3D medical image; Feature vector; Image encryption; Robustness; Zero watermarking;

D O I：

10.5013/IJSSST.a.17.43.33

中图分类号：

学科分类号：

摘要：

This work proposes a novel scheme for robust watermarking in encrypted 3D medical images. In the first phase, the owner of the 3D medical image encrypts the 3D medical image in the DCT domain using Logistic Map. Then the third party embeds or extracts the watermark in the encrypted 3D medical image. The watermarking embedding phase does not affect the image data of the encrypted 3D medical image for exploiting the zero-watermarking method. The watermark is calculated with the feature vector of the 3D medical image using exclusive OR, thus generating a watermark embedding key which will be used in the watermark extraction phase. The experimental results show that the proposed watermarking scheme has good robustness to some normal and geometric attacks. © 2016, UK Simulation Society. All rights reserved.

引用

页码：33.1 / 33.6

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