Title :
Data Hiding in Non-Expansion Visual Cryptography Based on Edge Enhancement Multitoning
Author :
Luo, Hao ; Yu, FaXin ; Pan, Jeng-Shyang
Author_Institution :
Zhejiang Univ., Hangzhou
Abstract :
This paper proposes a scheme to hide some extra confidential data in transparencies during secret image encryption in visual cryptography. The secret image is multitoned into several levels first. An extended non-expansion visual secret sharing model is employed, i.e. size of transparencies is equal to that of the secret image. Thus less time and space are needed for transparencies transmission and storage.
Keywords :
cryptography; data encapsulation; edge detection; image coding; image enhancement; data hiding; edge enhancement multitoning; extended nonexpansion visual secret sharing model; nonexpansion visual cryptography; secret image encryption; Bandwidth; Cryptography; Data encapsulation; Data security; Humans; Image storage; Information security; National security; Stacking; Variable structure systems; Data Hiding; Edge Enhancement Multitoning; Non-expansion; Visual Cryptography;
Conference_Titel :
Information Assurance and Security, 2008. ISIAS '08. Fourth International Conference on
Conference_Location :
Naples
Print_ISBN :
978-0-7695-3324-7
DOI :
10.1109/IAS.2008.57
