Image Hiding Algorithm Based on Displacement Block on Odd-Even Layer

Base on the thought of shifting histogram, a new reversible data hiding algorithm is proposed. This method utilizes two adjacent pixels of which difference is 1 to hide information, for the sake of improving payload, odd-even layer adopt different block mode and modification methods for gray values. Plenty of experimental results show that, comparing with other algorithm, the proposed method has advantages of large hiding capacity and high quality of carrier image after hiding information.