Reversible data hiding scheme for high dynamic range images based on multiple prediction error expansion

Highlights：

• A prediction error expansion-based data hiding algorithm is proposed, which can embed reversible watermark in the high dynamic range image with low distortion for sensitive areas.

• Multiple carriers, multi-model predictor and multi-level embedding strategy are adopted adaptively to improve the embedding capacity without reducing the invisibility.

• Multi-model predictor and multi-level embedding strategy are adopted adaptively to realize multi-level reversible HDR image information hiding, which can improve the embedding capacity without reducing the invisibility of the algorithm.

摘要

•A prediction error expansion-based data hiding algorithm is proposed, which can embed reversible watermark in the high dynamic range image with low distortion for sensitive areas.•Multiple carriers, multi-model predictor and multi-level embedding strategy are adopted adaptively to improve the embedding capacity without reducing the invisibility.•Multi-model predictor and multi-level embedding strategy are adopted adaptively to realize multi-level reversible HDR image information hiding, which can improve the embedding capacity without reducing the invisibility of the algorithm.

论文关键词：High dynamic range image,Reversible data hiding,Prediction error expansion,Multi-model predictor,Multi-level embedding

论文评审过程：Received 13 April 2020, Revised 10 November 2020, Accepted 18 November 2020, Available online 4 December 2020, Version of Record 8 December 2020.