In the past two decades, reversible data hiding (RDH), also referred to as lossless or
invertible data hiding, has gradually become a very active research area in the field of data …

Prediction-error expansion (PEE) is the most successful reversible data hiding (RDH)
technique, and existing PEE-based RDH methods are mainly based on the modification of …

Reversible data hiding (RDH) has developed various theories and algorithms since the
early 1990s. The existing works involve a large amount of specialized knowledge, making it …

This paper investigates the use of local prediction in difference expansion reversible
watermarking. For each pixel, a least square predictor is computed on a square block …

The art of secretly hiding and communicating information has gained immense importance
in the last two decades due to the advances in generation, storage, and communication …

Recently, various efficient reversible data-hiding schemes based on pixel value ordering
have been proposed for embedding messages into high-fidelity images. In these schemes …

Abstract Pixel-value-ordering (PVO) technique refers to the process of first ranking the pixels
in a block and then modifying the maximum/minimum for reversible data hiding (RDH). This …

The cover image is generally encrypted by a stream cipher in existing reversible data hiding
in encrypted image (RDHEI) methods. As pixel correlation is seriously damaged, more than …

The use of local prediction in difference expansion reversible watermarking provides very
good results, but at the cost of computing for each pixel a least square predictor in a square …

In recent years, high-dimensional histogram modification based reversible data hiding for
images has drawn much attention among researchers. Pairwise prediction-error expansion …