Research Article
Reversible Data Hiding Based on Multiple Pairwise PEE and Two-Layer Embedding
Table 7
Main notations used in this paper.
| | Notation | Description |
| | , | The i-th pixel in a block before/after sorting | | Prediction error of PVO-based PEE | | Prediction error of IPVO-based PEE | | | Prediction error of PVO-based pairwise PEE | | , |
| | Prediction error after recalculation | | Complexity measurement of the i-th block | | Cover image | | , | Horizontal gradient and vertical gradient of a block | | , | The 2D mappings in Figures 4 and 1(b) | | The parameterized 2D mapping | | 2D histogram sequence | | Capacity performance of using to modify | | Distortion performance of using to modify | | Length of the compressed location map |
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