Reversible Data Hiding Based on Histogram Modification of Pixel Differences
Wei‐Liang Tai, Chia-Ming Yeh, Chin‐Chen Chang · IEEE Transactions on Circuits and Systems for Video Technology · 2009
In this letter, we present a reversible data hiding scheme based on histogram modification. We exploit a binary tree structure to solve the problem of communicating pairs of peak points. Distribution of pixel differences is used to achieve large hiding capacity while keeping the distortion low. We also adopt a histogram shifting technique to prevent overflow and underflow. Performance comparisons with other existing schemes are provided to demonstrate the superiority of the proposed scheme.