Reversible data hiding for JPEG images based on pairwise nonzero AC coefficient expansion.
Nan LiFangjun HuangPublished in: Signal Process. (2020)
Keyphrases
- jpeg images
- data hiding
- reversible data hiding
- error correction
- information hiding
- spatial domain
- similarity measure
- lossy compression
- watermarking technique
- discrete cosine transform
- jpeg compression
- compression algorithm
- motion compensation
- digital images
- color images
- dct coefficients
- visual quality
- gray scale
- watermarking method
- feature vectors