Reversible Data Hiding Based on Pixel-Value-Ordering and Prediction-Error Triplet Expansion

Pixel value ordering and prediction error expansion (PVO+PEE) is a very successful reversible data hiding (RDH) scheme. A series of studies were proposed to improve the performance PVO-based However, embedding capacity those schemes quite limited. We propose two-step prediction-error-triplet RDH scheme based on PVO. three-dimensional state transition map for prediction-error triplet also guide By properly designing transitions, can embed secret or expand without by modifying just single entry triplet. The experimental results show that significantly enlarges further reduces distortion due embedding.