Open Access

ARTICLE

A Robust Zero-Watermarking Based on SIFT-DCT for Medical Images in the Encrypted Domain

Jialing Liu¹, Jingbing Li^1,2,*, Yenwei Chen³, Xiangxi Zou¹, Jieren Cheng^1,2, Yanlin Liu¹, Uzair Aslam Bhatti^1,2

1 College of Information Science and Technology, Hainan University, Haikou, 570228, China.
2 State key Laboratory of Marine Resource Utilization in the South China Sea, Hainan University, Haikou, 570228, China.
3 Graduate School of Information Science and Engineering, Ritsumeikan University, Shiga, Japan.

* Corresponding Author: Jingbing Li. Email: .