Reversible data hiding using neighboring block in VQ-compressed images.
Wei-Jen WangCheng-Ta HuangShiuh-Jeng WangPublished in: ICUIMC (2010)
Keyphrases
- compressed images
- reversible data hiding
- stego image
- visual quality
- blocking artifacts
- index table
- data embedding
- image compression
- compression rate
- data hiding
- jpeg images
- image quality
- image blocks
- high capacity
- reconstructed image
- dct coefficients
- compression ratio
- vector quantization
- discrete cosine transform
- bitstream
- bit rate
- dct domain
- high frequency
- peak signal to noise ratio
- low bit rate
- cover image
- human visual system
- coding method
- error concealment
- information hiding
- compressed domain
- pixel values
- computational complexity
- post processing
- prediction algorithm
- high quality
- secret data
- compression algorithm
- multiresolution