Research Article
Obtuse Angle Prediction and Factor Evaluation for Image Reversible Data Hiding
Table 6
Predicted EC with full rank context vectors.
| | Image | Method | EC of 1U radii | EC of 2U radii | EC of 3U radii |
| | F16 | RAP | 67015 | 45547 | 32503 | | OAP-I | 59086 | 38906 | 32833 | | OAP-II | 59002 | 41426 | 34818 |
| | Baboon | RAP | 14152 | 8971 | 6383 | | OAP-I | 12379 | 7528 | 6271 | | OAP-II | 12347 | 7830 | 6368 |
| | Barbara | RAP | 35022 | 23219 | 17239 | | OAP-I | 29882 | 19067 | 16296 | | OAP-II | 29824 | 20016 | 16997 |
| | Boat | RAP | 29427 | 19179 | 13359 | | OAP-I | 25629 | 16315 | 13603 | | OAP-II | 25581 | 17198 | 14208 |
| | Peppers | RAP | 33579 | 21664 | 15575 | | OAP-I | 29780 | 17955 | 15001 | | OAP-II | 29744 | 18954 | 15797 |
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