STUDY OF REVERSIBLE INFORMATION HIDING SCHEME BASED ON CARDBAL2 AND DCT
Taking advantage of the feature that the energy of the image would gather and spread on four components (LL2, LH2, HL2 and HH2) in the subimage after first-order CARDBAL2 multi-wavelet transform, propose an Information Hiding Algorithm based on CARDBAL2 transform and DCT. According to the algorithm, LL2 is embedding module of robust parameters (odd-even verification data, scrambling optimization parameters and Hash value of information). Embed hiding Information in LH2 and HL2 with RAID4 and contrast detection data in HH2. Choose different DCT coefficient interval in LL2, LH2 and HL2. In aspect of information processing, using Logistic map and optimistic algorithm, improve the consistence of the embedded data bits’ order and the character of the sub-image. The algorithm can increase invisibility and robustness separately by 2.19％ and 30.92％ averagely. The algorithm has an obvious advantage against cutting. Its sensitivity of image tampering can reach to 98％ or more and it has an excellent ability against steganalysis.
Information hiding CARDBAL2 multi-wavelet transform DCT Logistic map RAID4 genetic algorithm
Tao Zhang Shuai Ren Dejun Mu Wei Hu Degang Zhang
Department of Automatic Control, Northwestern Polytechnical University, Xi’an, China School of Information Engineering, Changan University, Xi’an, China
国际会议
北京
英文
649-653
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）