Funding for this research was provided by:
2017 Teaching and Research Program of Lanzhou University (2017114)
National Natural Science Foundation of China (Nos. U1536102, U1536116, U1636219, and 61872289)
Science and Technology Program of Guangxi (16380076)
Plan for Scientic Innovation Talent of Henan Province (2018JR0018)
China Mobile Research Fund Project (MCM20170407)
Key Laboratory of Digital Content Anti-Counterfeiting and Security Forensics of the state Administration of Press, Publication, Radio, Film and Television of the People’s Republic of China
Article History
Received: 26 July 2018
Revised: 3 October 2018
Accepted: 12 October 2018
First Online: 23 October 2018