Pixel-based pixel value ordering predictor for high-fidelity reversible data hiding
The proposed PPVO reversible data hiding method breaks the block constraint in the original PVO method. The manner of pixel-by-pixel embedding in PPVO improves the quality of marked image significantly and increases the embedding capacity compared with PVO. A new pixel selection method which uses more context pixels further improves the marked image quality. The experiment results show the superior performance of the proposed PPVO method.
pixel-based pixel value ordering pixel value ordering reversible data hiding pixel selection