DCT-based reversible data hiding scheme

  title={DCT-based reversible data hiding scheme},
  author={Chia-Chen Lin and Pei-Feng Shiu},
To enhance the hiding capacity of Chang et al.'s reversible DCT-based data hiding scheme, in this paper we propose another method called a layer-1 data embedding strategy. Our proposed layer-1 strategy considers some areas not used by Chang et al.'s scheme, which we call layer-2 data embedding. To achieve our objective, we applied Tian's pixel expansion method to design our layer-1 data embedding strategy. Experimental results confirm that the hiding capacity provided by combining our strategy… CONTINUE READING
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