Coefficient difference based watermark detector in nonsubsampled contourlet transform domain

2019 ◽  
Vol 503 ◽  
pp. 274-290 ◽  
Author(s):  
Xiang-yang Wang ◽  
Si-yu Zhang ◽  
Tao-tao Wen ◽  
Hong-ying Yang ◽  
Pan-pan Niu
Optik ◽  
2015 ◽  
Vol 126 (20) ◽  
pp. 2508-2511 ◽  
Author(s):  
Jingjing Wang ◽  
Qian Li ◽  
Zhenhong Jia ◽  
Nikola Kasabov ◽  
Jie Yang

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