A Reversible Watermarking for 2D Vector Map Based on Triple Differences Expansion and Reversible Contrast Mapping

Author(s):  
Fei Peng ◽  
Zhen-Jie Yan ◽  
Min Long
2015 ◽  
Vol 7 (3) ◽  
pp. 60-80 ◽  
Author(s):  
Nana Wang ◽  
Xiangjun Zhao ◽  
Han Zhang

In this paper, the authors propose a block-based reversible watermarking method for 2D vector map authentication. In the scheme, they divide the features of a vector map into different categories of blocks, calculate an authentication watermark for each block, and embed the watermarks of different blocks using a reversible watermarking method based on virtual coordinates and a fragile watermarking algorithm based on concentric circles. While the block division ensures superior accuracy of tamper localization, the two watermarking methods provide recovery of the original content. Experimental results show that the proposed scheme has good invisibility, reversibility and computational complexity, and can accurately locate malicious attacks such as vertex modification/addition/deletion and feature modification/addition/deletion.


Author(s):  
Nana Wang ◽  
Xiangjun Zhao ◽  
Chunli Xie

Author(s):  
Guoyin Zhang ◽  
Qingan Da ◽  
Liguo Zhang ◽  
Jianguo Sun ◽  
Qilong Han ◽  
...  

2018 ◽  
Vol 4 (4) ◽  
pp. 1-25 ◽  
Author(s):  
Nana Wang ◽  
Mohan Kankanhalli

2012 ◽  
Vol 6 (9) ◽  
pp. 1117-1125 ◽  
Author(s):  
Peng Fei ◽  
Chen Li ◽  
Long Min

2013 ◽  
Vol 23 (3) ◽  
pp. 912-918 ◽  
Author(s):  
Liujuan Cao ◽  
Chaoguang Men ◽  
Yue Gao
Keyword(s):  

2009 ◽  
Author(s):  
Chuanjian Wang ◽  
Bin Liang ◽  
Qingzhan Zhao ◽  
Zuqi Qiu ◽  
Yuwei Peng ◽  
...  
Keyword(s):  

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