%0 Journal Article
%A XIAO Zhenjiu1
%A 2
%A LI Nan1
%A WANG Yongbin2
%A JIANG Zhengtao2
%A CHEN Hong1
%T Zero watermarking scheme for medical image temper location based on hyper-chaos encryption
%D 2017
%R 10.3778/j.issn.1002-8331.1510-0128
%J Computer Engineering and Applications
%P 115-120
%V 53
%N 7
%X Medical image facing malicious tampering, information thefting and leaking, this paper proposes a hyper-chaos based zero watermarking scheme for image authentication and tamper detection. Firstly, original carrier image’s LSB plane should be initialized to zero. Secondly it is divided into non-overlapping blocks and calculating the mean value of each block, using the size relationship between each pixel of block and mean value of each block to construct the characteristic matrix. Finally, Arnold scrambled characteristics matrix and hyper-chaotic encrypted binary watermark are executed for XOR operation to construct a zero-watermark. In addition, if the image has been tampered, tampered area can be detected and localized accuracy by calculating the difference image. The experimental results show that the scheme not only has good security, but also achieves superior tamper detection and localization.
%U http://cea.ceaj.org/EN/10.3778/j.issn.1002-8331.1510-0128