Efficient reversible data hiding for VQ-compressed images based on index mapping mechanism.
Chuan QinChin-Chen ChangYen-Chang ChenPublished in: Signal Process. (2013)
Keyphrases
- compressed images
- visual quality
- image compression
- index table
- reversible data hiding
- compression rate
- compression ratio
- bitstream
- reconstructed image
- vector quantization
- data hiding
- image quality
- human visual system
- blocking artifacts
- frequency domain
- high frequency
- compressed domain
- locally adaptive
- jpeg images
- image processing