Lossless Information Hiding in Images

6.4. Summary

This chapter focuses on the lossless information hiding in JPEG and JPEG2000 images.

For JPEG images, seven typical methods including two schemes from the authors were introduced. For the first five schemes, we introduced the basic ideas, whereas for the schemes from the authors, we provided a detailed introduced detail with experimental results. In the first method of ours, our high-capacity reversible JPEG-to-JPEG data hiding scheme is introduced. Through lowering certain quantization table entries and lifting corresponding quantized DCT coefficients, space is made for embedding data. Using the proposed embedding strategy, our scheme can achieve high embedding capacity and keep the distortion introduced by embedding very low; meanwhile ...