A DCT multi-channel image information sharing scheme in resisting JPEG lossy compression attack

Authors:
Liping Shao;Xuanping Zhang;Yuemei Ren
Affiliations:
School of Computer Science, Northwest Polytechnical University, Xi'an, China,School of Computer Science, Shaanxi Normal University, Xi'an, China;School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, China;School of Computer Science, Northwest Polytechnical University, Xi'an, China
Venue:
IScIDE'11 Proceedings of the Second Sino-foreign-interchange conference on Intelligent Science and Intelligent Data Engineering
Year:
2011

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Abstract

In conventional image information sharing schemes, there exist many disadvantages such as the limited ability in resisting attacks, the low utilization of sub-information and the lossless restored secret image. To address these problems, a novel DCT Based multi-channel image information sharing scheme in resisting JPEG lossy compression attack is proposed. In the source end, the distributed sub-informations of secret image are generated by Lagrange interpolation and certificated by avalanche scrambling transformation. The produced distributed sub-informations and authentication informations are embedded to images carriers by mean value adjusting method in DCT domain. After being received in the terminal end, all received sub-information are utilized to reconstruct the hided secret image in block. The experimental results show the proposed scheme can resist JPEG lossy compression, copping, erasing and other attacks effectively by comparing the conventional methods.