A copyright protection scheme for digital images using visual cryptography technique

2007 ◽  
Vol 29 (1) ◽  
pp. 125-131 ◽  
Author(s):  
Der-Chyuan Lou ◽  
Hao-Kuan Tso ◽  
Jiang-Lung Liu
2017 ◽  
Vol 63 (6) ◽  
pp. 870-880 ◽  
Author(s):  
B. Pushpa Devi ◽  
Kh. Manglem Singh ◽  
Sudipta Roy

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