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Reversible data embedding using a difference expansion. Tian Jun. IEEE Transactions on Circuits and Systems for Video Technology . 2003
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A lossless data hiding sche-me based on three-pixel block difference. Ching-Chiuan Lin,Nien-Lin Hsueh. Pattern Recognition . 2008
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Image hiding algo-rithm based on displacement block on odd-even layer. REN Hong-e,CHANG Chun-wu,ZHANG Jian. Proc of International Workshop on Chaos-Fractal Theories and Applications . 2009
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Reversible data hiding. NI Z C,SHI Y,ANSARI N. IEEE Transactions on Circuits and Systems . 2006