Reversible image watermarking using interpolation technique

In this paper presents a novel reversible watermarking scheme. The proposed scheme use an interpolation technique to generate residual values named as interpolation error. Additionally apply the additive expansion to these interpolation-errors, this project achieve a highly efficient reversible watermarking scheme which can guarantee high image quality without sacrificing embedding capacity. The experimental results show the proposed reversible scheme provides a higher capacity and achieves better image quality for watermarked images. The computational cost of the proposed scheme is small.