Prediction error distribution with dynamic asymmetry for reversible data hiding

作者：

Highlights：

• A reversible data hiding method based on prediction-error expansion is proposed.

• Error distribution with dynamic asymmetry is created according to embedding capacity.

• The number of shifted pixels is controlled by the dynamic asymmetry rate of distribution.

• Embedding distortion is significantly decreased due to diminishing shifted pixels.

摘要

•A reversible data hiding method based on prediction-error expansion is proposed.•Error distribution with dynamic asymmetry is created according to embedding capacity.•The number of shifted pixels is controlled by the dynamic asymmetry rate of distribution.•Embedding distortion is significantly decreased due to diminishing shifted pixels.

论文关键词：Reversible data hiding,Prediction error expansion,Asymmetric prediction-error distribution

论文评审过程：Received 22 December 2019, Revised 4 May 2021, Accepted 23 June 2021, Available online 30 June 2021, Version of Record 17 July 2021.

论文官网地址：https://doi.org/10.1016/j.eswa.2021.115475