Two reversible data hiding schemes for VQ-compressed images based on index coding.
Peyman RahmaniGholamhossein DastghaibyfardPublished in: IET Image Process. (2018)
Keyphrases
- compressed images
- index table
- reversible data hiding
- visual quality
- compression rate
- data embedding
- data hiding
- high capacity
- image compression
- coding method
- compression ratio
- image quality
- bitstream
- reconstructed image
- error concealment
- secret data
- bit rate
- coding scheme
- locally adaptive
- compressed domain
- high frequency
- discrete cosine transform
- peak signal to noise ratio
- blocking artifacts
- low bit rate
- human visual system
- jpeg images
- vector quantization
- dct domain
- image processing
- error correction
- pixel values
- prediction algorithm
- cover image
- gray level
- post processing
- feature extraction