An Embedding Technique Based upon Block Prediction and Code Cascading Shift

The scheme we propose combines the advantages of the scheme from Wu et al., and the techniques of reversibility, to increase the embedding capacity, while maintaining the same visual quality. Inspired from the reversibility of Ni et al.´s scheme which can completely extract hidden information and restore to the original images, a code cascading shift approach is designed in a reversible way to embed/extract secret data onto embeddable code based block prediction. The experimental results show the embedding efficiency is better than Wu et al.