High Capacity Reversible Data Hiding Scheme based on Interpolation and Tetris Matrix

Interpolation technology has evolved into a powerful tool for reversible data hiding in the image processing field. However, existing interpolated algorithms only have a trivial impact on image quality. In this paper, an innovative interpolation and matrix-based algorithm is proposed. A novel concept of the difference between interpolated pixels is represented to dramatically improve the visual quality of the image, which lays a solid foundation for the subsequent data hiding stage. There is growing evidence that the Tetris matrix plays a vital role in improving embedding capacity. It is worth mentioning that our scheme can intensely resist different attacks of various degrees. Numerous experimental findings demonstrate that the effect of our proposed scheme is unprecedentedly perfect even though a higher capacity is embedded than with traditional steganography approaches.